Looking for a hearty and nutritious vegetarian casserole? This sweet potato and black bean casserole is the answer. It combines the natural sweetness of roasted sweet potatoes with the earthy flavors of black beans, corn, and spices. The casserole is layered with a tangy tomato sauce and topped with a sprinkle of cheese for added richness. Baked until bubbly and golden, this casserole is a satisfying and protein-packed meal that will keep you full and energized.