Ingredients:
2 blocks of cream cheese, softened
about 1/2 cup mayo
about 1/4 cup sour cream
large splash of lemon juice
splash of worcestershire sauce
1 T prepared horseradish
1 T prepared mustard (dijon or stoneground preferred)
1/2 cup grated parmesan or romano, plus a few tablespoons more for sprinkling
1 can (16 oz) crab meat - claw meat is fine
Mix the ingredients above, then spread in a casserole dish. Sprinkle w/ cheese, then bake at 350 until hot and bubbly - about 40 minutes. (nothing raw, so you're just heating/melting - so oven temperature is flexible if you're also heating something else)