Preheat oven to 400 °F and gather ingredients.
Chop the peppers and onions.
Slice the steak filets.
Arrange steak and vegetables on sheet pan and season with lime, avocado oil and taco seasoning. Bake for 25-30 minutes, or until steak if cooked to your preference. Serve with avocado, beans, tortillas and lettuce!
