Toasted Vegetable-Cheese Sandwiches

Stir together mayonnaise, pesto, black pepper and ground red pepper. 

Spray one side of each bread slice with butter-flavored cooking spray and place sprayed-side-down on a baking sheet. 

Spread cheese spread on four slices of bread. Layer pepper strips, zucchini and spinach on top of cheese spread. 

Spread mayonnaise mixture on remaining bread slices and place mayonnaise-side down on top of the sandwiches. 

Broil sandwiches until golden on both sides, about 2 minutes per side, being careful when turning the sandwiches. 