Tomato and Green Chile Fajitas

1 pound flank steak, cut into thin 1/4-inch strips
1 (14.5 ounce) can diced tomatoes with green chiles, drained
2 teaspoons chili powder
2 teaspoons ground cumin
1/2 teaspoon salt
1 medium green bell pepper, cut into thin strips
1 medium red bell pepper, cut into thin strips
1 medium onion, cut into thin strips
3 tablespoons olive oil, divided
10 fajita size flour tortillas, warmed

Optional toppings
Sour cream
Cilantro, freshly chopped
Salsa

Combine steak, drained tomatoes, chili powder, cumin and salt in a large plastic sealable bag.

Stir and fry half of steak mixture in 1 tablespoon hot oil. Add 1 tablespoon of oil between batches. Stir fry over medium-high heat until steak is cooked to desired doneness. Remove from skillet.