Savory Southwestern Grilled Swiss and Pumpkin Sandwiches are awesome! This sandwich includes roasted pumpkin, Swiss cheese, black beans, corn, tomatoes, orange bell pepper, green onions and fresh cilantro. It has amazing Tex-Mex flavors with the uniqueness of adding pumpkin to the mix. You can substitute butternut squash if fresh pumpkin is not available. Every bite is mouthwatering, hearty, filling and totally satisfying.