Step 1

Preheat the oven to 350°F. Lightly grease a 3 quart baking dish with nonstick cooking spray and set aside.

Step 2

Brown the ground beef with the onions in a large skillet over medium high heat until cooked through, about 4 to 6 minutes. Add the garlic and cook another minute or two, stirring frequently.

Step 3

Stir in the ketchup, dijon mustard and relish, mixing thoroughly. Cook for an additional 1 to 2 minutes or until fragrant. Remove from heat. Stir in the diced tomatoes, bacon, 1 ½ cups of shredded cheese and the heavy cream. Mix in the noodles. (If you don't have room in your skillet, simply combine in the baking dish or large bowl.)

Step 4

Sprinkle the rest of the cheese on top in an even layer.

Step 5

Cover the casserole with foil and bake for 15 to 25 minutes or until the cheese melts completely and the casserole is heated through.

Step 6

Serve hot garnished with chopped green onions, optional.