The easiest and best tasting restaurant style steak fajitas made on a single sheet pan in less than 15 minutes. Packed with flavor and a family favorite.
1
Start by slicing the flank steak with a sharp knife into thin strips. You may have to cut longer strips in half or in thirds depending on the size of the flank steak. Cut the peppers and onions in thin pieces as well.
2
Toss the beef, red onion, and bell peppers with the olive oil, lime juice, and fajita seasoning and let rest for 15-30 minutes. I like to do this in a ziploc bag for easy clean up. This step can be skipped if you are short on time.
3
Preheat the oven to 425 degrees. Spray a baking sheet with cooking spray. You can also cover with foil for easier cleanup. Spread the steak and vegetables in a single layer on the baking sheet.
4
Place in the oven and cook for 10-12 minutes, until the steak until the vegetables are tender-crisp. Turn the oven up to broil to add some char and crispiness to the steak for the last 2 minutes of cooking. One important note, the peppers and onions will still have some bite and texture when cooked this way. If you prefer a softer vegetable, place them in the oven 10 minutes before adding the steak.