Tri Color Macaroni Salad

1 package tri color macaroni, cook, drain
1 (15 oz) can corn, drain
1 (15 oz) can kidney beans, drain
1 (4 oz) can sliced mushrooms, drain
1 (16 oz) package edamame beans, shell
1/2 c red onion, chop fine
1/2 c red bell pepper, dice
1/2 c low-fat Italian Salad dressing

Mix all. Chill several hours.