INGREDIENTS
2 tsp
olive oil
1
small onion, thinly sliced
8 oz
sliced button mushrooms
1/4 tsp
crushed red pepper flakes, or to taste
1/2 tsp
salt
1/4 tsp
freshly ground pepper
3 cups
baby spinach
8
(6-inch) corn tortillas
1 cup
shredded Cheddar cheese
1/4 cup
chopped cilantro
1/2 cup
jarred salsa, for serving