4 teaspoons canola oil, divided
1/3 cup uncooked long-grain white rice
1 teaspoon chopped garlic, divided
2/3 cup water
1/4 teaspoon salt, divided
1 tablespoon chopped jalapeño pepper
1/4 cup reduced-fat sour cream
1 tablespoon chopped cilantro
1 teaspoon fresh lemon juice
1/8 teaspoon ground red pepper
1 cup chopped onion
1 cup sliced cremini mushrooms
1/2 cup fresh corn kernels
1 small zucchini, halved lengthwise and sliced (about 3/4 cup)
3/4 cup halved grape tomatoes
4 (7- to 8-inch) whole-wheat tortillas
4 ounces quesadilla cheese, shredded (about 1 cup packed)
Cilantro leaves (optional)