Ingredients
2 tablespoons vegetable oil
1 large poblano, ribs and seeds removed, thinly sliced (1 1/2 cups)
1 small red onion, halved and thinly sliced (1 1/4 cups)
Kosher salt and freshly ground pepper
1 medium zucchini, cut into a 1/2-inch dice (1 1/2 cups)
1 1/2 cups green salsa (from a 16.7-ounce jar), such as La Costeña
6 corn tortillas (each 6 inches)
5 ounces low-moisture mozzarella, cut into a 1/2-inch dice
1/3 cup Mexican crema or sour cream
Shredded iceberg lettuce, sliced radishes, and halved cherry tomatoes, for serving
Preparation
Preheat oven to 375°F. Heat a medium (10-inch) ovenproof skillet (preferably cast iron) over medium. Add oil, poblano, and 1 cup onion; season with salt and pepper. Cook, stirring occasionally, until onion is translucent, about 5 minutes. Add zucchini; continue cooking until vegetables are tender and golden in places, 10 to 12 minutes more.
Remove from heat; transfer mixture to a large plate. Pour 1 cup salsa into skillet. Working one at a time, dip tortillas in salsa, turning to evenly coat both sides; transfer to plate with vegetables.
Layer tortillas and vegetables evenly in skillet. Top evenly with mozzarella, crema, and remaining 1/2 cup salsa. Bake until bubbly and browning in places, 20 to 22 minutes. Serve with lettuce, radishes, tomatoes, and remaining 1/4 cup onion.
