In blender, combine water, cashews, onions, peppers, yeast flakes, garlic and salt. Blend until very smooth.

Add olive oil slowly while continuing to blend. Stir in lemon juice.

Pour a little sauce into the bottom of baking dish. Add a layer of spaghetti. Sprinkle with some of the burger.

Top with some of the cheesy sauce and more tomato sauce.Repeat layers, ending with tomato sauce.

Bake at 375 degrees for about 1/2 hour. Reduce heat to 325 and bake 30 minutes longer.