Very Veggie Lasagna

Ingredients (19)

• + 12 lasagna noodles add to pantry
• + 1 tablespoon olive oil add to pantry
• + 2 pounds button mushrooms, chopped add to pantry
• ✓ 1 cup chopped onion
• + 2 cloves garlic, minced add to pantry
• + 1 teaspoon Italian seasoning, crushed add to pantry
• + 2 (8 ounce) cans no-salt-added tomato sauce add to pantry
• + 1 (14.5 ounce) can no-salt-added diced tomatoes with juices add to pantry
• + 3 tablespoons balsamic vinegar add to pantry
• + 1 teaspoon salt, divided add to pantry
• + ¼ crushed red pepper add to pantry
• + 1 (15 ounce) container part-skim ricotta cheese add to pantry
• ✓ 1 egg, lightly beaten
• ✓ 2 teaspoons chopped fresh rosemary
• + ½ teaspoon black pepper add to pantry
• + cooking spray add to pantry
• + 2 cups shredded part-skim Italian cheese blend add to pantry
• + 2 (10 ounce) packages frozen diced butternut squash, thawed add to pantry
• + 12 fresh sage leaves add to pantry