Tropical Chicken - cooking recipe

Ingredients

1 medium onion, sliced
1/2 c. finely diced celery
1 Tbsp. oil
2 Tbsp. each cornstarch and soy sauce
2 c. diced, cooked chicken
1 large tomato
1 small green pepper, cut into 1/4-inch strips
11 oz. chicken broth (about)
1 (8 oz.) can pineapple chunks
hot cooked rice (long grain or brown)

Preparation

I cook two or three chicken breasts. I usually use it all.