Cook the ravioli according to package instructions in a large pot of salted boiling water. Drain and set aside, reserving 1/4 cup of the pasta water.
In a large skillet, heat the olive oil over medium heat. Add the diced zucchini and sauté for about 3-4 minutes until it begins to soften.
Stir in the corn and cook for an additional 2-3 minutes until heated through.
Add the minced garlic to the skillet and cook for about 1 minute, stirring frequently to prevent burning.
Reduce the heat to low and add the butter to the skillet. Once melted, add the cooked ravioli and reserved pasta water. Toss gently to combine, allowing the ravioli to soak up the flavors.
Season with salt and pepper to taste. Remove from heat and garnish with fresh parsley and grated Parmesan cheese before serving.