Spare Spoons Kitchen
The quick fajita-style plate — peppers and onions charred hard in a screaming skillet, with Costco's pre-cooked sirloin folded in at the end and a squeeze of lime. Pile into warm tortillas, or build a bowl.
The char is the flavor. A screaming-hot cast-iron skillet (or grill pan) and a single layer are what blister the vegetables; crowd the pan and they steam instead.
Make it a bowl: skip the tortillas and pile everything over cilantro-lime rice with black beans, avocado, and salsa.
Toppings make it — sour cream or crema, guacamole, shredded cheese, pico or salsa, and plenty of fresh cilantro.
The pre-cooked sirloin is the shortcut: it folds in at the end, so dinner is really just charring vegetables and warming tortillas.
Same Costco sirloin, other nights: French Dip Sandwiches and Beef Stroganoff.
Gluten-free: use corn tortillas (or serve as a bowl over rice) — the beef, peppers, spices, and lime are naturally gluten-free; check a seasoning packet if you use one.
Vegetarian / vegan: skip the beef and bulk it up with black beans, sliced portobello, or extra peppers — the charred vegetables and seasoning carry it.