Veggie Lasagna

Name: Veggie Lasagna
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Cuisine: American
Ingredients: 9 whole lasagna noodles; 2 cups matchstick carrots (finely chopped); 2 cups baby spinach (finely chopped); 3 cups broccoli (finely chopped); 1/4 whole yellow onion (finely chopped); 7 tablespoons butter (keep 4 tablespoons + 3 tablespoons separate); 4 tablespoons flour; 2 cloves garlic (minced); 1 teaspoon onion powder; ¾ cup vegetable broth; ½ cup 2% milk; 1½ cup heavy cream; ½ cup part skim ricotta; ½ cup Parmesan (shredded); ½ cup Romano (shredded); ½ cup Asiago (shredded); ½ cup mozzarella (shredded); 1 cup Ritz crackers (crushed); 2 teaspoons all purpose seasoning (I use Mrs. Dash); Salt & Pepper to taste