2 (8 oz.) pkg. cream cheese
1/2 lb. imitation crab
2 tbsp. mustard
1/4 tsp. cream of tartar
3/4 c. mayonnaise

Preheat oven to 350 degrees. Mix all ingredients in a casserole dish. Cook for 30 to 40 minutes after all cream cheese is melted. Stir again before serving.