Easy Oven Roasted Potatoes and Onions Recipe

I am excited to share a mouthwatering recipe for easy oven roasted potatoes and onions. This easy-to-follow recipe combines the goodness of sliced potatoes and onions, roasted to perfection with fragrant herbs in the oven.

The cast iron skillet filled with golden-brown potatoes and onions fresh out of the oven

Potatoes are remarkable in their versatility and are, without a doubt, one of my absolute favorite ingredients for making healthy comfort food with minimal effort.

This oven-roasted potatoes and onions recipe is perfect for a satisfying weeknight dinner. Its combination of crispy potatoes and sweet onions is sure to be an easy side dish your family will love.

The beauty of this recipe lies in its simplicity. Using simple ingredients you likely already have in your pantry, you can create a dish that delivers great flavor without any fuss.

If you share my love for simple potatoes recipe, be sure to check out tried and true options:

Close-up of crispy roasted potatoes and tender onions in a cast iron skillet

Oven Roasted Potatoes and Onions With Herbs Ingredients

To make roasted potatoes and onions with butter and herbs, you will need a few simple ingredients:

Potatoes: Go for good-quality red potatoes, russet potatoes, or Yukon Gold. They turn crispy and golden on the outside when roasted.

Onions: Choose a yellow onion or red onion to add a hint of natural sweetness. Roasting them brings out a delicious caramelized flavor that goes perfectly with the potatoes.

Butter: Use butter to coat the potatoes and onions for a rich and flavorful taste. It helps them brown evenly and makes delicious crispy potatoes. You can use oil instead of butter if you want a crispier result.

Seasonings: Enhance the flavors with a mix of simple seasonings. Combine a delicious blend of salt, black pepper, basil, oregano, thyme, marjoram, and rosemary. These herbs give the potatoes and onions a pleasant aroma and a tasty combination of savory flavors.

An appetizing sight of roasted potatoes and onions served in a cast iron skillet

How to Make Oven Roasted Potatoes and Onions

Roasted potatoes and onions make for a simple and great side dish. Follow this step-by-step guide to create a flavorful and satisfying recipe.

For precise measurements, please refer to the printable recipe card provided below.

Wash and Scrub the Potatoes

Start by thoroughly washing and scrubbing the raw potatoes to remove dirt or debris.

Peel or Leave the Skin On

Next, consider whether you prefer to peel the potatoes or leave the skin on. Potato skins add a rustic touch and provide extra nutrients and texture to the dish. Use a vegetable peeler or a small knife to remove the skin if you choose to peel them.

diced potatoes in a cast iron skillet

Dice the Potatoes

Using a sharp chef’s knife, and a sturdy cutting board, cut the potatoes into chunks about 1 inch thick; this ensures that the potatoes cook evenly.

Once the potatoes are cut, place them in a large cast iron skillet or spread them in a single layer on a sheet pan.

Chopped onions on a cutting board

Chop the Onions

Begin by peeling off the onion’s outer skin and chop the onion into small, finely diced pieces. Once the onion is prepared, combine them with the dice potatoes, gently tossing them together.

Coating the Potatoes and Onions

In a small saucepan or microwave-safe bowl, melt the butter. Once the butter is melted, drizzle it over the potatoes and onions. Ensure that every slice is lightly coated with melted butter.

Seasoning the Potatoes and Onions

In a small bowl, combine the herbs for the roasted potatoes. Mix the salt, pepper, basil, oregano, thyme, marjoram, and rosemary. Then, generously sprinkle it over the top of the potatoes.

Toss the potatoes so that they are evenly coated with the herb blend.

Preheat the Oven

Preheat your oven to 425 degrees. This temperature allows the potatoes and onions to roast evenly and achieve that perfect balance of crispy and tender.

Oven-ready cast iron skillet filled with potatoes and onions

Roast the Red Potatoes and Onions in Oven

Place the skillet or large baking sheet with the potatoes and onions in the oven.

Roast for approximately 45 minutes or until golden brown with crispy edges and fork-tender. Flip or stir the potatoes and onions every 15 minutes through the cooking process to ensure even browning on all sides.

The cooking time may vary based on the thickness of the potato slices and your desired level of crispness. Keep a close eye on them and adjust the cooking time accordingly.

Check for Fork-Tenderness

Insert a fork or toothpick into one of the potato slices. The potatoes are cooked to perfection if it effortlessly slides through with little resistance.

Serve

For a complete meal, serve the crispy potatoes alongside tender and juicy pork chops smothered in a creamy sauce.

A close-up of potatoes and onions sizzling on a spatula

Storing and Reheating

If you find yourself with leftover roasted red potatoes and onions, here’s how to store and reheat them:

Store Properly: Transfer roasted potatoes and onions to an airtight container. Store them in the refrigerator to maintain their freshness. They should last for up to three days.

Reheat in the Oven or Stovetop: To reheat, preheat the oven to around 350°F (175°C). Spread the leftovers on a baking sheet and heat for 10-15 minutes until warm. You can reheat them on the stovetop by gently sautéing them in a pan with vegetable oil or butter.

The cast iron skillet filled with golden-brown potatoes and onions fresh out of the oven

Tips for Making This Potato Recipe

  • Choose the Right Potatoes: You can use different kinds of potatoes to add variety to this simple dish. Consider using waxy potatoes like Yukon gold or new potatoes alongside starchy potatoes like russets.
  • Oil or Butter: While I prefer melted butter for coating the potatoes and onions, you can use olive oil, avocado oil, or even melted coconut oil.

Frequently Asked Questions

Best Seasoning Blend for Roasted Potatoes

When it comes to achieving the best seasoning blend for roasted potatoes, a combination of herbs and spices can work wonders. Blend dried basil, oregano, thyme, marjoram, and rosemary, along with a touch of salt and pepper, to enhance the natural taste of the potatoes.

What Are the Best Tasting Potatoes for Roasting?

When roasting potatoes, varieties such as russet, red potatoes and Yukon Gold are often considered the best-tasting options.

Should You Season Potatoes Before or After Cooking?

To achieve the best flavor, seasoning raw potatoes before roasting them is generally recommended.

Printable Recipe Card

Oven roasted potatoes and onions are a perfect side dish to complete any meal. With a few simple steps, you can transform these humble ingredients into a flavorful, satisfying, tasty side dish your whole family will love.

No matter how you choose to enjoy them, whether as a standalone side or as part of a complete meal, these roasted potatoes and onions are guaranteed to satisfy your desire for a homecooked side dish.

So gather your ingredients, follow the simple steps, and indulge in the scrumptiousness of this easy recipe.

Yield: 6

Easy Oven Roasted Potatoes and Onions Recipe

An appetizing sight of roasted potatoes and onions served in a cast iron skillet

The Easy Oven Roasted Potatoes and Onions Recipe is a simple and delicious dish. Sliced potatoes and onions are roasted in the oven to perfection. With minimal ingredients and easy steps, it's a hassle-free recipe. The result is tender and flavorful potatoes with caramelized onions that make a tasty side dish or a satisfying meal.

Prep Time 10 minutes
Cook Time 45 minutes
Total Time 55 minutes

Ingredients

  • 2 1/2-3 pounds potatoes, diced
  • 1 medium onion, sliced and diced
  • 1/2 tablespoon basil
  • 1/2 tablespoon oregano
  • 1/2 tablespoon thyme
  • 3/4 teaspoon marjoram
  • 3/4 teaspoon rosemary
  • salt + pepper to your preferred taste

Instructions

  1. Start by thoroughly washing and scrubbing the raw potatoes to remove dirt or debris.
  2. Next, consider whether you prefer to peel the potatoes or leave the skin on. Potato skins add a rustic touch and provide extra nutrients and texture to the dish. Use a vegetable peeler or a small knife to remove the skin if you choose to peel them.
  3. Using a sharp chef’s knife, and a sturdy cutting board, cut the potatoes into chunks about 1 inch thick; this ensures that the potatoes cook evenly.
  4. Once the potatoes are cut, place them in a large cast iron skillet or spread them in a single layer on a sheet pan.
  5. Begin by peeling off the onion's outer skin and chop the onion into small, finely diced pieces. Once the onions are prepared, combine them with the dice potatoes, gently tossing them together.
  6. In a small saucepan or microwave-safe bowl, melt the butter. Once the butter is melted, drizzle it over the potatoes and onions. Ensure that every slice is lightly coated with melted butter.
  7. In a small bowl, combine the herbs for the roasted potatoes. Mix the salt, pepper, basil, oregano, thyme, marjoram, and rosemary. Then, generously sprinkle it over the top of the potatoes.
  8. Toss the potatoes so that they are evenly coated with the herb blend.
  9. Preheat your oven to 425 degrees. This temperature allows the potatoes and onions to roast evenly and achieve that perfect balance of crispy and tender.
  10. Place the skillet or large baking sheet with the potatoes and onions in the oven.
  11. Roast for approximately 45 minutes or until golden brown with crispy edges and fork-tender.
  12. Remember to flip or stir the potatoes and onion every 15 minutes through the cooking process to ensure even browning on all sides.
  13. The cooking time may vary based on the thickness of the potato slices and your desired level of crispness. Keep a close eye on them and adjust the cooking time accordingly. Thinner slices will cook faster, while thicker ones may require more time.
  14. Insert a fork or toothpick into one of the potato slices. The potatoes are cooked to perfection if it effortlessly slides through with little resistance.
  15. For a complete meal, serve the crispy potatoes alongside tender and juicy pork chops, smothered in a creamy sauce.

Notes

  • Choose the Right Potatoes: You can use different kinds of potatoes to add variety to this simple dish. Consider using waxy potatoes like Yukon gold or new potatoes alongside starchy potatoes like russets.
  • Oil or Butter: While I prefer melted butter for coating the potatoes and onions, you can use olive oil, avocado oil, or even melted coconut oil.

Did you make this recipe?

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