Grilled Veggie Quesadillas

Name: Grilled Veggie Quesadillas
Ingredients: 2 whole Zucchini; 1 whole Yellow Squash; 1 whole Red Bell Pepper; 4 whole Tortillas; 1 cup Shredded Cheese (pepper Jack Recommended); ⅓ cups Sour Cream; 3 Tablespoons Minced Roma Tomato (about Half Of One); 1 teaspoon White Or White Wine Vinegar; 2 Tablespoons Prepared Ranch Dressing; 1 dash Cumin; 1 dash Paprika; 1 dash Hot Sauce; 2 Tablespoons Chopped Green Onions, Plus More For Garnish; 2 Tablespoons Chopped Fresh Cilantro, Plus More For Garnish; 1 Tablespoon Milk; 1 dash Salt And Pepper, to taste