Heat oil in a large nonstick skillet coated with cooking spray over medium-high heat. Add zucchini and bell pepper; sauté 6 minutes or until lightly browned. Add water and next 4 ingredients (water through tomatoes). Stir to combine. Cover and simmer 3 minutes.
Warm tortillas according to package directions.
Break 1 egg into a small custard cup. Slip egg onto tomato mixture; repeat procedure with remaining eggs. Cover and simmer 3 minutes or until eggs are done. Sprinkle with cheese. Cover and cook 30 seconds or until cheese melts.
Place 1 tortilla on each of 4 plates. Spoon 1 egg and 3/4 cup tomato mixture onto each tortilla. Sprinkle with 1/2 teaspoon cilantro.