Ingredients

1 large red bell pepper

1 large green bell pepper

2 pounds cremini or baby bella 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

Directions

Step 1: Preheat broiler to high.

Step 2: To prepare meat loaf, cut bell peppers in half lengthwise; discard seeds and membranes. Place pepper halves, skin sides up, on a foil-lined baking sheet; flatten with hand. Broil 12 minutes or until blackened. Place in a paper bag; fold to close tightly. Let stand for 10 minutes. Peel and finely chop. Place bell peppers in a large bowl.

Step 3: Reduce oven temperature to 350°.

Step 4: Place about one-fourth of mushrooms in a food processor; pulse 10 times or until finely chopped. Transfer chopped mushrooms to a bowl. Repeat procedure 3 times with remaining mushrooms.

Step 5: Heat a large nonstick skillet over medium-high heat. Add oil to pan; swirl to coat. Add mushrooms to pan; sauté 15 minutes or until liquid evaporates, stirring occasionally. Add mushrooms to bell peppers. Wipe pan with paper towels. Add asparagus and onion to pan; sauté 6 minutes or until just tender, stirring occasionally. Add onion mixture to mushroom mixture.

Step 6: Arrange breadcrumbs in an even layer on a baking sheet; bake at 350° for 10 minutes or until golden. Add breadcrumbs and the next 8 ingredients (through eggs) to mushroom mixture, stirring well. Spoon mixture into a 9 x 5-inch loaf pan coated with cooking spray; press gently to pack. Bake at 350° for 45 minutes or until a thermometer registers 155°.

Step 7: To prepare topping, combine 2 tablespoons ketchup and remaining ingredients in a small bowl; brush ketchup mixture over meat loaf. Bake an additional 10 minutes.

Step 8: Let stand 10 minutes; cut into 6 slices.