Now, listen, I’ve roasted a *lot* of things in my time, but there’s something just so darn comforting about simple oven roasted potatoes and onions. Maybe it reminds me of Sunday dinners at my grandma’s in Asheville – that woman could make anything taste like love! I’m Maxine, by the way. But most folks call me Max, and I’m here to share my kinda sorta famous oven roasted potatoes and onions. This ain’t no fancy dish, mind you. It’s pure, unadulterated, stick-to-your-ribs goodness. The reason this is super special is ’cause it’s simple. Not a ton of crazy prep, and you probably already have most of the stuff kicking around in your pantry. Plus, even though swordfish might be the main star of the show, these potatoes are the *perfect* side.

Why You’ll Love This Oven Roasted Potatoes and Onions Recipe
Okay, so why should you even bother making these potatoes and onions? Trust me, there are a bunch of reasons! These are a staple in my kitchen because:
- They’re ridiculously easy to make. Seriously, anyone can do it!
- You probably already have the ingredients hanging around. No fancy grocery runs needed.
- Flavor! I mean, who doesn’t love perfectly roasted potatoes and sweet onions?
- They’re totally vegan, so everyone at the table can enjoy them.
- They go with just about anything! Seriously, these are the BEST side dish.
Ingredients for Oven Roasted Potatoes and Onions
Alright, let’s talk ingredients! You won’t need a whole lot, I promise. Here’s what you’ll need to whip up my famous (well, kinda famous) roasted potatoes and onions:
- 2 lbs potatoes, peeled and cubed (I like Yukon Golds, but Russets work too!)
- 2 large onions, sliced. Don’t be shy with ’em!
- 1/4 cup olive oil. The good stuff, if you have it!
- 1 teaspoon salt.
- 1/2 teaspoon black pepper. Freshly cracked is always best!
- 1 teaspoon dried oregano.
How to Prepare Oven Roasted Potatoes and Onions: Step-by-Step Instructions
Okay, darlin’, let’s get down to the nitty-gritty. Here’s how Grandma Max (that’s me!) makes her famous oven roasted potatoes and onions. Don’t you worry, it’s easier than pie!
- First things first: Preheat your oven to 400°F (200°C). Seriously, don’t skip this step! A hot oven is key to crispy potatoes.
- Now, grab that big bowl. Yeah, the one you use for everything. Toss in your cubed potatoes and sliced onions.
- Drizzle that olive oil all over the potatoes and onions. Don’t be stingy! You want ’em nice and coated. Now sprinkle on the salt, pepper, and oregano.
- Here’s where you gotta get your hands dirty! Mix everything together until those potatoes and onions are glistening and well-seasoned. Trust me, this is the best way to make sure everything’s evenly coated.
- Spread the mixture in a single layer on a baking sheet. Now, careful here, because if you pile ’em on top of each other, they’ll steam instead of roast and we don’t want that! A good tip for extra crispiness is a light dusting of cornstarch!
- Pop that baking sheet into the preheated oven and roast for 45-50 minutes. You can also check out these crispy potato wedges! Remember to flip the potatoes and onions halfway through. This’ll make sure they get golden brown on all sides, baby!
- Keep an eye on ’em! Every oven’s a little different, so yours might take a bit more or less time. You’ll know they’re done when the potatoes are tender and golden brown, and the onions are nice and caramelized.
- Last but not least, serve ’em up hot! These potatoes and onions are best enjoyed right out of the oven. Now get in there and enjoy that home cookin’.

Tips for the Best Oven Roasted Potatoes and Onions
Want to take these potatoes and onions from good to *amazing*? Honey, I’ve got you covered! Here are a few of my tried-and-true tips:
- Don’t overcrowd the pan! Seriously, give those potatoes and onions some breathing room. If they’re too close together, they’ll steam instead of roast, and you’ll end up with soggy spuds. Nobody wants that.
- Get ’em crispy! Want that extra somethin’ somethin’? I like to parboil my potatoes for about 5 minutes before roasting. It helps them crisp up real nice. You may also want to check out these crispy smashed potatoes!
- Don’t be afraid of the dark! A little browning on those potatoes and onions is a good thing. That’s where all the flavor is at! Just keep an eye on them so they don’t burn.
- Seasoning, baby, seasoning! Don’t be shy with the spices. A little extra salt, pepper, or even a pinch of garlic powder can really take these potatoes over the top.
Serving Suggestions for Oven Roasted Potatoes and Onions
These potatoes and onions are so versatile, you can pair ’em with practically anything! But if you want my two cents, they’re especially good with a juicy steak or some grilled chicken. For a real treat, try them with a creamy sauce – like this mushroom cream sauce! It’s heaven on a plate, I tell ya!

Storage & Reheating Instructions for Your Oven Roasted Potatoes and Onions
Got leftovers? Lucky you! To store, just pop ’em in an airtight container and stick ’em in the fridge. They’ll keep for about 3-4 days. When you’re ready to reheat, I recommend spreading them out on a baking sheet and popping them back in a 350°F oven until heated through. This helps them crisp up a bit. Microwaving works in a pinch, but they might get a little soggy. Just sayin’!
Frequently Asked Questions About Oven Roasted Potatoes and Onions
Got questions about these here potatoes and onions? Don’t you worry, I’ve got answers! Here are a few of the most common things folks ask me:
Can I use different kinds of potatoes?
Absolutely, sugar! I usually go for Yukon Golds ’cause they get nice and creamy, but Russets work great too. Red potatoes will give you a slightly different texture, but they’re delicious too. It’s really all about what you like!
Do I have to peel the potatoes?
Nope! Peeling is totally optional. I usually peel mine ’cause that’s how my grandma always did it, but leaving the skins on gives ’em a little extra texture and nutrients. Just make sure you scrub ’em good first!
Can I add other vegetables?
You betcha! This recipe is super versatile. Carrots, bell peppers, even Brussels sprouts would be delicious! Just toss ’em in with the potatoes and onions and roast ’em all together.
What’s the best way to get them extra crispy?
Alright, so the secret to extra crispy potatoes? A couple things! Like I mentioned before, parboiling ’em helps. Also, make sure you’re not overcrowding the pan. And don’t be afraid to crank up the heat for the last few minutes of roasting! Careful you don’t burn ’em, though!
Can I make these ahead of time?
You can, but they’re definitely best fresh. If you need to prep ahead, I recommend chopping the potatoes and onions and storing them in a bowl of cold water to prevent browning. Then, just drain ’em and toss ’em with the oil and seasonings right before roasting.

Nutritional Information Disclaimer
Now, listen, these nutrition facts are just an estimate! It depends on what kind of potatoes and oil you use, so take it with a grain of salt, okay?
Enjoy Your Oven Roasted Potatoes and Onions!
Alright, y’all! That’s all there is to it! I hope you love these potatoes and onions as much as my family does. Now, don’t be shy – leave a comment below and let me know what you think! Or, if you’re feeling extra generous, give the recipe a rating! And if you really wanna make my day, share it with your friends on social media!
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Crispy Oven Roasted Potatoes and Onions
- Total Time: 65 min
- Yield: 6 servings 1x
- Diet: Vegan
Description
Simple oven roasted potatoes and onions.
Ingredients
- 2 lbs potatoes, peeled and cubed
- 2 large onions, sliced
- 1/4 cup olive oil
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1 teaspoon dried oregano
Instructions
- Preheat oven to 400°F (200°C).
- In a large bowl, combine potatoes, onions, olive oil, salt, pepper, and oregano.
- Spread the mixture in a single layer on a baking sheet.
- Roast for 45-50 minutes, or until potatoes are tender and golden brown, flipping halfway through.
- Serve hot.
Notes
- For extra crispiness, parboil the potatoes for 5 minutes before roasting.
- Prep Time: 15 min
- Cook Time: 50 min
- Category: Side Dish
- Method: Roasting
- Cuisine: Mediterranean
Nutrition
- Serving Size: 1 serving
- Calories: 250
- Sugar: 5g
- Sodium: 300mg
- Fat: 12g
- Saturated Fat: 2g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 35g
- Fiber: 4g
- Protein: 4g
- Cholesterol: 0mg