2. In a large mixing bowl, combine, crab, lemon juice, cream cheese, mayonnaise, Parmesan cheese, garlic, green onion, mustard, and cayenne pepper. Mix well.
3. In an ovenproof baking dish or pie plate, transfer the mixture and spread evenly.
4. Pop the dish in oven and bake for 20-25 minutes or until the top becomes brown and bubbly.
5. Serve hot crab dip with crusty bread or chips.