Wash and cut your vegetables.
Slice steak
Grease your pan
Gather all your ingredients, measure everything then set aside.
Heat 1 tbsp olive oil in a large skillet over medium-high heat. Add the sliced peppers and onions, sautéing for 5–7 minutes until softened with a light char. Remove from the skillet and set aside.
In the same skillet, add the seasoned steak in a single layer. Cook for 2–3 minutes per side until just cooked through.
Return the cooked peppers and onions to the skillet. Toss everything together for 1–2 minutes to let flavors meld.
Heat flour or corn tortillas in a dry skillet, microwave, or oven until soft and warm.
Spoon the steak and veggie mixture onto tortillas. Add optional toppings like sour cream, shredded cheese, avocado, salsa, or a squeeze of lime. Serve immediately while hot.