In 12-inch nonstick skillet or wok, heat oil over medium-high heat until hot. Add carrot, onion, bell peppers, zucchini and mushrooms; cook and stir 6 to 8 minutes or until vegetables are crisp-tender.
Stir in taco seasoning from dinner kit and the water; cook 2 to 4 minutes, stirring frequently, until sauce is bubbly and thickened.
Stack tortillas from dinner kit on microwavable plate; cover with microwavable plastic wrap. Microwave on High 1 minute.
To serve, place 2 warm tortillas on each of 5 dinner plates. Spoon about 1/2 cup vegetable mixture in center of each tortilla. Fold each tortilla in half. Top with sour cream and taco sauce from dinner kit.