Classic Gnocchi Gratin with Gruyere, Havarti and Crab Meat

Preheat the oven to 350 degrees F. Place a large pot of salted water over high heat. Bring to a boil, and cook 2 lbs gnocchi according to the package instructions. Drain the gnocchi and place in a 9X13 inch baking dish. Add 1 lb crab meat and mix. In a large sauce pot (could be the same used for pasta) melt 4 tbsp of butter over medium heat. Whisk in ¼ c. flour, 3 cloves minced garlic and zest of 1 lemon. Cook for another minute, then add 3 c. half and half and whisk until smooth. Once the mixture is warm, add 8 oz shredded gruyere cheese and 8 oz shredded havarti cheese. Stir to blend, then add 1 tsp salt,1/2 tsp pepper and 1/2 tsp nutmeg. Once smooth, taste for salt (add more if needed) and pour the cheese mixture over the crab and gnocchi. Mix and smooth in the baking dish. Then melt 3 tbsp of butter and toss with 1 1/2 c. panko bread crumbs. Sprinkle the top with bread crumbs, and bake for 20-30 minutes, until the edges are bubbly and the top is golden. Sprinkle with chopped parsley and serve warm