1 (16 oz.) pkg. frozen peas, thawed
1/2 lb. fully cooked ham, julienned
1 c. (4 oz.) shredded cheese, cheddar
1 c. red onion, chopped
1/3 c. to 1/2 c. ranch salad dressing

In a serving bowl, combine the peas, ham, cheese, and onions. Pour dressing over the top, toss to coat evenly.