Veggie Lasagna Stuffed Portobello Mushrooms

Name: Veggie Lasagna Stuffed Portobello Mushrooms
Prep time: 10 min
Cook time: 34 min
Total time: 44 min
Cuisine: Italian
Ingredients: 1 teaspoon olive oil; 2 loose cups baby spinach (chopped); 3 cloves chopped garlic; 1/3 cup chopped onion; 1/3 cup chopped red bell pepper; kosher salt; 3/4 cup part skim ricotta; 1/2 cup grated parmesan cheese; 1 large egg; 4 large basil leaves (chopped); 4 large portobella mushroom caps; 1/2 cup marinara sauce; 1/2 cup part skim shredded mozzarella