Sheet Pan Steak Fajitas

flank steak

salt and fresh ground pepper (to taste)

homemade fajitas seasoning mix (divided)

olive oil (divided)

red bell pepper (cut into strips)

green bell pepper (cut into strips)

yellow bell pepper (cut into strips)

red onion (thinly sliced)

(6-inch) Whole Wheat Low Carb Flour Tortillas

chopped fresh parsley or cilantro (for garnish)

lime slices (for garnish)

plain yogurt or sour cream (optional, for garnish)

shredded cheddar cheese (optional, for garnish)

avocado (diced, for garnish)