Preheat the oven to 375°F.
Warm butter in a pan over medium heat until liquid.
Stir in flour and cook for one minute.
Slowly add heavy cream and seafood stock.
Stir until the sauce gets thick.
Add salt, pepper, paprika, and garlic powder.
Mix in the cooked lobster meat.
Add lemon juice for freshness.
Put the mixture into a baking dish.
Mix crushed crackers with Parmesan and parsley.
Sprinkle topping over the lobster mixture.
Bake for 20 minutes until golden brown.
Give it five minutes to settle before serving.