Chop up your onion and slice your mushrooms, and sauté in a frying pan until translucent or just cooked. Remove from pan and cook beef until brown. Meanwhile, mix together all the casserole crust ingredients; in a blender (or simply crush) crush your cheese itz and mix in with the other ingredients.

When beef is done cooking, mix it together with mushrooms and onions. Then take a microwaveable bowl and boil two cups of water with three beef bouillon cubes until fully dissolved. Then add half and half and flour. Microwave again for thirty seconds to melt the cheese into the mixture.

When all is said and done, put your beef mixture in a pan. Pour cream mixture over that. Sprinkle casserole crust on top.

Have oven preheated to 400°F and cook until top is golden brown.