Whole30 Baked Peppers and Onions is one of the easiest dishes you'll ever make! Once the vegetables are prepared, just toss them in the spices, and bake right in a cast iron skillet. It's great for fajitas, tacos, burrito bowls, or even meal prep!

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Jump to:

• 🍴Ingredient Notes
• 🍴Step by Step Instructions
• Helpful Tips
• What to serve with Peppers and Onions
• How to store leftovers
• Recipe
• Want more recipes?
• 💬 Reviews

🍴Ingredient Notes

• Sliced Bell Peppers - Any bell peppers will work for this recipe! I like using a mix of all the colors.
• Sweet Onion - You'll need 1-2 onions depending on how big they are.
• Olive Oil - You can sub with Avocado Oil.
• Spices - Chili Powder, Cumin, Salt, Cayenne Pepper, Garlic Powder. If you don't have these individual spices, you can also use a packet of taco seasoning or a couple teaspoons of a Mexican style spice blend.

🍴Step by Step Instructions

1. Start by adding sliced peppers and onions into the cast iron skillet or a bowl. (If it's easier to stir.) Pour over all the spices and olive oil, and stir well.
2. Bake the peppers and onions in the cast iron skillet for about 30 minutes, or until vegetables are tender.
3. Serve hot, enjoy!

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Helpful Tips

• If you don't have a cast iron skillet, you can also use a large casserole dish!
• For quicker preparation, use a packet of taco seasoning instead of individual spices.
• You can stir the mixture together in the cast iron skillet or a bowl if it's easier.
• It's optional, but I like stirring the mixture after about 20 minutes of baking to make sure it's not sticking at the bottom of the pan.
• If you're using a cast iron skillet, make sure it's seasoned!

What to serve with Peppers and Onions

• My favorite way to serve this dish is fajita style with grilled chicken or steak. I slice the meat thinly and serve on the side with gluten-free tortillas.
• If you're vegetarian, you can serve the vegetables with Cilantro Rice.
• It's also great if you want to make a burrito bowl! Stuff your bowl with whatever you have on hand. (Protein/grains/vegetables.)
• Other great pairings - fresh lime juice, avocado, cilantro.

How to store leftovers

If you have leftovers, they can easily be stored in an air tight container in the refrigerator for up to 5 days. (Glass containers are my personal favorite!)

More Mexican inspired recipes!

• Instant Pot Taco Soup
• Healthy Cilantro Rice (Vegan)
• Grilled Stuffed Peppers with Chipotle Chicken
• Pepper Nachos (Whole30, Paleo)

After you make these Peppers and Onions, make sure to leave a comment & rate the recipe! Your feedback is helpful for me, and for anyone planning to try this recipe. I hope you love them as much as I do!

Recipe