Easy Ratatouille

Name: Easy Ratatouille
Ingredients: 1 bottle Michaels's of Brooklyn Marinara sauce; salt and ground black pepper to taste; 4 roma tomatoes; 1 small eggplant (peeled, and very thinly sliced); 1 zucchini (trimmed and very thinly sliced); 1 yellow squash (trimmed and very thinly sliced); 1 red bell pepper (cored and very thinly sliced and cut in half); 1 yellow bell pepper (cored and very thinly sliced and cut in half); 1 orange bell pepper (cored and very thinly sliced and cut in half); 3 tablespoons olive oil (or to taste); 1 tablespoon fresh basil leaves or to taste; 3 tablespoons mascarpone cheese