"Pantry Raid" Chicken Enchilada Casserole

Ingredients (12)

• + 1 (15 ounce) can tomato sauce add to pantry
• + ¼ cup water add to pantry
• + 1 envelope taco seasoning mix add to pantry
• + 1 ½ tablespoons chili powder add to pantry
• ✓ 1 tablespoon vegetable oil
• + 1 pound chicken breast tenderloins add to pantry
• + 1 (15 ounce) can black beans, drained add to pantry
• ✓ ¼ cup cream cheese
• + 1 cup shredded Mexican-style cheese blend, or more to taste add to pantry
• + 1 (7.5 ounce) package corn bread mix add to pantry
• ✓ 1 egg
• + ⅓ cup milk add to pantry