Quesadilla Casserole

Name: Quesadilla Casserole
Prep time: 15 min
Cook time: 25 min
Yield: 8
Cuisine: Mexican,
Ingredients: 1 pound (500 g) ground beef; 1/2 cup (125 ml) chopped onion; 1 can (680 ml) tomato sauce; 1 can (540 ml) black beans drained and rinsed; 1 can (341 ml) whole kernel corn undrained; 1 can (127 ml) chopped green chiles undrained; 2 tsps (10 ml) chili powder (club house); 1 tsp (5 ml) cumin ground (club house); 1 tsp (5 ml) minced garlic (club house); 1/2 tsp (2 ml) oregano leaves (club house); 1/2 tsp (2 ml) pepper crushed red (club house); 6 flour tortillas (8-inch/20-cm); 2 cups (500 ml) shredded Cheddar cheese