Fiesta Pasta Salad

16 oz. Rotini pasta
Tomato
Avacado
1 can Shoe peg corn- drained
1 can Black beans- rinsed and drained
1 can Kidney beans- rinsed and drained
green onions
olives

Dressing:
1 C. Mayo
1 T. Chili powder
1/2 C. Milk
1 pkg. Hidden Valley Fiesta Dip