8 ounces fettuccine
2 boneless, skinless chicken breasts
1 tablespoon Italian seasoning
Kosher salt and freshly ground black pepper, to taste
2 tablespoons olive oil, divided
Juice of 1 lemon
2 zucchini, sliced
1 yellow squash, sliced
2 tablespoons chopped fresh parsley leaves
1/4 cup unsalted butter
3 cloves garlic, minced
1 cup heavy cream, or more, to taste
1/2 teaspoon dried basil
1/2 teaspoon dried oregano
1/2 teaspoon crushed red pepper flakes, optional
1/2 cup freshly grated Parmesan cheese
2 tablespoons chopped fresh parsley leaves