1/2 c. cooked shrimp
1 sm. pkg. crabmeat
1 sm. pkg. peas (frozen), cooked
1 c. sour cream
1 pkg. alfredo sauce mix
7 oz. cooked spaghetti
1 (4 oz.) can mushrooms

Prepare packaged sauce mix. Combine all ingredients in large bowl. (All ingredients should be cooked.) Top with Parmesan cheese, if desired.