In a large skillet, brown 1 large zucchini diced; 6 large crimini mushrooms, chopped; 1 small bunch of scallions thickly sliced. Add 8-10 pitted kalamata olives, halved. Stir and simmer. Drain one can Marzano whole tomatoes. Chop and add to the skillet. Heat and stir. Season with oregano, basil, garlic powder, red pepper flakes to taste. Simmer for 30 minutes. Take off heat and add large dollops ricotta cheese. Stir into the sauce. Serve over fresh pasta topped with a generous amount of lemon zest.