MEAT LOAF:
1 large red bell pepper
1 large green bell pepper
2 pounds cremini mushrooms, coarsely chopped
1 tablespoon olive oil
1 cup 1/2-inch asparagus pieces
1/2 cup chopped red onion
1 cup panko (Japanese breadcrumbs)
1 cup chopped walnuts, toasted
2 tablespoons chopped fresh basil
1 tablespoon ketchup
1 teaspoon Dijon mustard
1/2 teaspoon kosher salt
1/2 teaspoon freshly ground black pepper
4 ounces fresh Parmigiano-Reggiano cheese, grated
2 large eggs, lightly beaten
Cooking spray

TOPPING:
2 tablespoons ketchup
1 tablespoon vodka or vegetable broth
1/4 teaspoon Dijon mustard