Sweet Tamale Pie

Preheat the oven to 400 degrees F (200 degrees C).

Add 2 tablespoons olive oil and garlic to a cold skillet; cook over medium heat until sizzling and fragrant, 2 to 3 minutes. Stir in onion, salt, and black pepper; cook until onion is translucent, 5 to 10 minutes. Add ground beef; cook and stir until beef is browned and crumbly, 5 to 10 minutes.

Stir 2 cans Mexican-style corn, salsa, tomato sauce, 1 can chopped green chiles, and taco seasoning into ground beef mixture; bring to a boil. Reduce heat, cover skillet, and simmer until liquid has reduced, about 15 minutes. Transfer ground beef filling to a 9x13-inch casserole dish.