Mexican Quesadilla Casserole

Description This is so easy and yummy! Ingredients cooking spray 1 pound ground beef ½ cup chopped onion 1 (15 ounce) can tomato sauce 1 (15 ounce) can black beans, rinsed and drained 1 (14.5 ounce) can diced tomatoes with lime juice and cilantro (such as RO*TEL®) 1 (8.75 ounce) can whole kernel sweet corn, … Read more