Cookwith - Vegetarian High-Protein Lasagne Bolognese

Ingredients

• 9 sheets no-boil lasagne noodles (whole wheat if available)
• 1 tbsp extra-virgin olive oil
• 1 medium onion, finely diced
• 2 medium carrots, finely diced
• 2 celery stalks, finely diced
• 3 cloves garlic, minced
• 2 cups cremini mushrooms, finely chopped
• 1/2 tsp salt, plus more to taste
• 1/2 tsp freshly ground black pepper
• 1/4 tsp red pepper flakes (optional)
• 2 tbsp tomato paste
• 1/2 cup dry red wine (or vegetable broth)
• 1 (28 oz) can crushed tomatoes
• 1 1/2 cups cooked green or brown lentils (drained, rinsed)
• 1/3 cup chopped fresh parsley, divided
• 1 tsp dried oregano
• 1 tsp dried basil
• 1 cup cottage cheese (2% or higher)
• 1 1/2 cups part-skim ricotta cheese
• 1 large egg
• 1/2 cup freshly grated Parmesan cheese
• 8 oz part-skim mozzarella cheese, shredded (about 2 cups)
• 1/2 cup finely chopped walnuts (optional, for texture and protein)