Mushroom Zucchini Lasagna Rolls

Name: Mushroom Zucchini Lasagna Rolls
Cuisine: European, Italian, Mediterranean
Ingredients: 4 large zucchini thinly sliced lengthwise (I used a mandoline); 1 Tbsp olive oil for brushing + 1 additional Tablespoon for sautéing; 1 small sweet yellow onion, finely diced; 2 fresh garlic cloves, minced; 8 oz fresh mushrooms, chopped well; 1 tsp dry Italian seasoning; 16 ounces high quality marinara sauce; sea salt and fresh ground pepper, to taste; 1/3 cup organic ricotta; 1 free range egg; 1/4 cup freshly grated Parmesan cheese; a handful or fresh parsley, finely chopped; 1/2 cup shredded mozzarella cheese