Ravioli With Tomatoes & Zucchini

1 lb cheese ravioli, cooked according to package 4 tablespoons butter 12 fresh sage leaves or 1 teaspoon dried sage 2 tablespoons fresh parsley , chopped 1[...]

1 (9 ounce) package refrigerated cheese ravioli 2 small zucchini , cut into 2-inch 1/4-inch strips 1 onion , cut into small wedges 1 (14 1/2 ounce) can[...]