Spicy Zucchini and Pesto Cheese Stuffed Shells

Name: Spicy Zucchini and Pesto Cheese Stuffed Shells
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Cuisine: American, Italian
Ingredients: 3/4 pound ground spicy Italian chicken sausage; 3 zucchini, chopped ((about 1 1/2 cups chopped)); 1/3 cup tomato paste; 1/3 cup vodka; 1 cup milk; 2 tablespoons fresh thyme leaves; 1 tablespoon fresh oregano, chopped; kosher salt and pepper; 1 pound jumbo shells; 2 cups whole milk ricotta cheese; 2 cups shredded provolone cheese; 3/4 cup basil pesto; 4 ounces mozzarella, torn; fresh basil for, serving