If you want to cook fajitas in the oven on a sheet pan we have the perfect temperature and timing so your potatoes, bell peppers and skirt steak is super tender made with the best fajita marinade.
If you’re looking for how to cook Skirt Steak in Oven with vegetables together this is the best meal of all time. It is packed with protein and is a low carb keto meal that everyone in our family loves and is easier to do than in a skillet or on the grill.
We started this journey when I didn’t want to fry this in a cast iron skillet and made Instant Pot fajitas that way. It was good but didn’t give me the crispy edges that I wanted, this did.
I think the “old fashioned” oven is still a favorite cooking method among many so I moved on to this way next. I have used our steak dry rub on the outside which is sweet and savory, used a marinade, and experimented with other seasonings. They all are delicious and a close second to being served this at a restaurant for sure.
What makes a fajita a fajita?
Traditionally they’re served sizzling hot using skirt steak or flank steak, peppers and occasionally other vegetables seasoned well (or this is how to make fajita seasoning), cooked together in a skillet or grill! They’re a Tex-Mex cuisine made with any grilled meat that is served as a taco on a flour or corn tortilla but can be enjoyed as is.
How long does it take to cook fajitas in the oven?
Cook time will vary depending on the size and thickness of the strips so you will want to test often but the range is typically 10-14 minutes. You do not want to overcook flank steak (used here) or it will become dry. Less is more in the case of cuts that have a lot of connective tissues.
Can you use frozen steak to make fajitas?
Yes and no. It can be somewhat firm but needs to be thawed enough to be able to slice it or you would need to follow our directions in how to cook frozen steak first. Then slice and cook the veggies separately on another pan, combine when done.
Made with Chicken
If you want to make this with chicken breasts you could follow this recipe too, you will just need to adjust time a bit like you would with our Thin Chicken Breast in Oven timing. Same goes with this, sliced into strips is the classic method and look of this dish.
Fajitas in Oven Recipe
Equipment
- 1 sheet pan
Ingredients
- 1-2 lbs flank steak, or skirt steak sliced thin
- 1-2 heads broccoli, cut up
- 10 small potatoes
- 2 large bell peppers, sliced
- 8 oz mushrooms
- 1 large onion, sliced
- 1 tbsp seasoned salt
- 1 tsp cumin
- 1 tsp oregano
- 1 tsp garlic
- 1 tbsp olive oil
- 1/2-1 tsp chili powder, optional for a bit of heat, Sriracha seasoning can be used too
Instructions
- Pre-cook your potatoes, either by boiling them for 15 minutes, or by poking holes in the skins with a fork and microwaving for 7 – 10 minutes. Slice cooked potatoes in half, and place cut side down on sheet pan.
- In a large bowl, toss broccoli with 2 tbs soy sauce and 1 tbs olive oil. Spread onto your sheet pan.
- Slice peppers and arrange on sheet pan. Spray lightly with oil.
- Arrange mushrooms on sheet pan, spray lightly with oil and then sprinkle with seasoned salt.
- Arrange onion slices on sheet pan, spray lightly with oil and season with seasoned salt.
- Slice your steak into small slices. In a large bowl toss with 1 tbs olive oil, 1 tsp cumin, 1 tsp minced garlic (about 1 clove), 1/2 tsp oregano, 1/4 tsp salt. Spread onto your sheet pan in a single layer.
- Cook under a high broiler for 5-7 minutes, then flip steak and onions. Cook another 5-7 minutes or just until meat is cooked.
- Line the pan with foil before you begin, and cleanup will be a breeze!Pay attention to where your broiler is Mine is always hottest in the center, so I put more hearty items in the center of the pan.
Video
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
How to serve
I would warm tortillas on the stovetop or microwave (or make homemade air fryer tortillas – best option) and serve with meat and vegetables inside. You can just eat as is for a low calorie gluten free option though.
What goes with fajitas?
- Sautéed or caramelized onions
- Cloves of garlic
- Peppers, any and all colors
- Chicken (or steak)
- Serve it with:
- white rice or brown rice
- beans, pinto or black
- tortillas, corn or flour
- sour cream
- guacamole or slices of avocado
- Cheese is a must for us, I love Jack and sharp cheddar
How do you eat fajitas?
There isn’t a wrong way really!! Think outside of the box and make a steak fajita cups as an appetizer that is easy to grab and go for parties. Top with a bit of pico de gallo and they are always a big hit. If you’re having people over and want a hearty meal but easier to pick up these are the answer! I showed you a picture of our crockpot chicken fajitas above. Great if you’re out and about all day.
Prefer fish? Try these shrimp fajitas some night too. And we’ve even made beef and shrimp air fryer fajitas! Jump to recipe below and get started with our easy sheet pan steak fajitas recipe.
Other sheet pan meals you’ll love
Try our sheet pan chicken thighs and sheet pan turkey next! Both are great for families, are low carb and high in protein just like this one here.
