Preheat oven to 325 degrees. Cook macaroni as per package instructions, drain and set aside.
In medium sized saucepan, melt butter over medium-high heat. Add flour, and whisk until smooth. Add milk, salt and Worcheshire sauce and bring to a boil, stirring constantly.
Once boiled, remove from heat and whisk in Le Gré Des Champs cheese.
Pour cheese sauce over prepared macaroni noodles and toss until fully coated. Transfer Macaroni and cheese mixture to oven safe baking dish.
Mix melted butter and breadcrumbs together and crumble on top of macaroni and cheese mixture.
Bake, uncovered, for 20 minutes. Remove from oven and serve!