Chicken and Cheese Tostadas

I'm sure we've all had tostadas before. I found this one on my friend's blog and tried it the other night. It was a tasty spin on tostadas!

6 flour tortillas
1pkg taco seasoning
1 lb. chicken breast, cut into 1/2" pieces
1/2 c. water
2 cups chopped tomatoes, divided
2 cups shredded cheddar cheese
6 TB sour cream
1/4 c. chopped cilantro

Preheat oven to 350. Place tortillas on large baking sheet. Spray tortillas with cooking spray; sprinkle with 1 tsp of seasoning mix. Bake 7-8 minutes or until crisp and golden brown.

Meanwhile, mix chicken, remaining seasoning, and water in large skillet. Simmer 5 minutes or until chicken is done. Stir in 1 1/2 cups tomatoes and heat through. Remove from heat. Stir in 1 1/2 cups cheese.

Spoon chicken mixture over tortillas and top with remaining tomatoes, cheese, sour cream, and cilantro.