Teriyaki Pineapple Chicken

I have always liked the idea of Hawaiian Haystacks...rice with cream of chicken topped with chow mein and fruits/vegies, but I wanted something a little different. I went to my favorite recipe site allrecipes.com and found this one. I really liked it, although I would put in less red pepper flakes. I served it over brown rice. 

Teriyaki Pineapple Chicken

• 2 tablespoons vegetable oil
• 1 pound skinless, boneless chicken breasts, cut into cubes
• 1 green bell pepper, sliced thin (I omitted these)
• 1 yellow bell pepper, sliced thin
• 1 red bell pepper, sliced thin
• 1 1/4 cups sliced fresh mushrooms
• 1 onion, chopped
• 1 cup teriyaki sauce
• 1 (8 ounce) can pineapple chunks, undrained
• 1 teaspoon garlic powder
• 1 teaspoon crushed red pepper
• 1/4 cup all-purpose flour

Recipe found at http://allrecipes.com/Recipe/Teriyaki-and-Pineapple-Chicken/Detail.aspx