Mexican Casserole

Ingredients

• 1 lb extra lean ground beef (drained or rinsed!)
• ½ cup onion (chopped)
• ¼ cup canned jalapeno slices, chopped
• 2 cups fresh tomatoes, chopped or 1 (15 ounce) can diced canned tomatoes
• 1 (15 ounce) can kernel corn (drained)
• 1 (15 ounce) can black beans (rinsed and drained)
• 1 (1¼ ounce) package taco seasoning mix
• 8 corn tortillas
• ¾ cup nonfat sour cream
• ⅓ cup reduced-fat Mexican cheese blend, shredded
• ⅓ bunch fresh cilantro, chopped, to taste (or less (or more)