Grilled Veggie Burrito

Name: Grilled Veggie Burrito
Ingredients: 1 Tablespoon Olive Oil; 2 cups Long Grain Rice; 4 cups Low Sodium Chicken Broth; 2 whole Limes, Juiced And Zested; 1/4 cup Chopped Cilantro; 2 whole Zucchini, Cut Into Slices Lengthwise; 1 whole Yellow Squash, Cut Into Slices Lengthwise; 2 ears Corn, Leaves And Silk Removed; Olive Oil For Brushing; Salt For Sprinkling; 1 can Seasoned Black Beans (15 Ounce Can); 6 whole Burrito-sized Flour Tortillas; 1 whole Small Onion, Finely Chopped; 2 whole Roma Tomatoes, Diced; 1 cup Grated Monterey Jack Cheese; Optional Toppings: Salsa, Sour Cream, Guacamole, Extra Cilantro, Hot Sauce