Slow Cooker Fresh Veggie Lasagna Recipe

Ingredients

• Nonstick cooking spray
• 1 1/2 cups Mozzarella cheese, shredded
• 1/2 cup part-skim Ricotta cheese
• 1/3 cup Parmesan cheese, grated
• 1 egg, lightly beaten
• 1 teaspoon dried oregano
• 1/4 teaspoon garlic powder
• 1 cup low-sodium, fat-free marinara sauce (plus additional for serving)
• 1 medium zucchini, diced
• 4 no-boil lasagna noodles
• 1 bag baby spinach
• 1 cup thinly sliced mushrooms
• Fresh basil leaves (optional)