Vegetable Beef Casserole

1 lb. ground beef
1 10-oz pkg. frozen peas
4 Tablespoons chopped onion
1 Cup chopped celery
1 Can cream of mushroom soup
1/4 Teaspoon salt
1/4 Teaspoon pepper
3 Tablespoons canned milk
2 Cups crushed potato chips

- Brown beef until cooked; spread in the bottom of a baking dish. in a large bowl, combine peas, onions, celery, soup, salt, pepper; pour over beef. Sprinkle with crushed potato chips. Bake @ 350°F for 30 minutes.