Roasted Onions with Butter and Herbs
Roasted Onions with Butter and Herbs
These roasted onions are soft, caramelized, and packed with rich, buttery flavor. Roasting sliced onions in the oven brings out their natural sweetness, while simple herbs and butter make this side dish both comforting and versatile.
Perfect alongside meatloaf, chicken, pork, or even piled onto sandwiches, these onions are an easy way to add big flavor with very little effort.
Roasting onions is one of the easiest ways to transform a humble ingredient into something truly special. As they cook, the onions soften, caramelize, and develop a rich sweetness that pairs beautifully with butter and herbs. It’s a simple technique that delivers big flavor without requiring much hands-on time.
This recipe is also incredibly flexible. You can change up the herbs depending on what you’re serving or what you have on hand, and it works just as well for a casual weeknight dinner as it does for a holiday spread. If you’re looking for a side dish that’s easy, comforting, and endlessly useful, roasted onions are always a great choice.
Why You’ll Love These Roasted Onions
- Only a few simple ingredients
- Naturally sweet and caramelized
- Easy oven-roasted side dish
- Pairs well with almost any main dish
- Great for holidays or weeknight dinners
For more helpful tips and simple cooking ideas, be sure to visit our How-To page.
Ingredients
- 3–4 large onions (yellow or sweet onions work best)
- 3 tablespoons butter, melted
- 1 tablespoon olive oil (optional)
- 1 teaspoon salt
- ½ teaspoon black pepper
- 1 teaspoon dried thyme or rosemary
- Optional: garlic powder or fresh herbs
How to Make Roasted Onions
- Preheat oven to 400°F.
- Peel the onions and slice them into thick rounds or wedges.
- Place onions in a single layer on a baking sheet or in a baking dish.
- Drizzle with melted butter and olive oil, if using.
- Sprinkle with salt, pepper, and herbs. Toss gently to coat.
- Roast uncovered for 30–40 minutes, stirring once halfway through, until onions are tender and lightly caramelized.
- Serve warm.
Serving Ideas
- Alongside roasted chicken or pork
- Spoon over mashed potatoes
- Add to burgers or sandwiches
- Serve with meatloaf or steak
Jennie’s Thoughts
Roasted onions are one of those simple side dishes that always surprise people. The oven brings out so much sweetness, and the butter makes them rich and comforting. I love how versatile they are — they go with just about anything and always make a meal feel more homemade.
More Easy Side Dishes
Looking for more simple sides?
Browse all of my Side Dish Recipes on My Family Dinner Ideas for easy, comforting additions to any meal.
