sick of summer — Les Petites Gourmettes

Ingredients

• 1 pound fusilli, penne, or another short-cut pasta
• 2 tablespoons olive oil
• 4 tablespoons unsalted butter, divided
• 1 medium yellow onion, peeled and diced
• 4 cloves garlic, peeled and minced
• 1/2 teaspoon red chile flakes
• 2½ pounds zucchini and/or yellow squash, ends trimmed and diced
• 1½ cups cherry or grape tomatoes, left whole
• Zest of 1 large lemon
• 2 cups plain Greek yogurt (not low or nonfat)
• 2 cups shredded cooked chicken breasts or rotisserie chicken
• 1/4 cup loosely packed fresh basil leaves, chopped
• 1/4 cup loosely packed fresh mint leaves, chopped
• Freshly ground black pepper, to taste
• 1 cup grated Parmesan cheese, divided