Toasted Cheese Toasty with Pizza Cheese, Mushroom, Cumin Salt, Chilli and Onion

2 slices of sourdough bread
1/2 pizza cheese, grated (this is a blend of three cheese produced by Perfect Italiano brand)
2 cup mushrooms, sliced thinly
1 tsp diced white onion
Chilli cumin salt (1 tbs whole cumin seeds, 2 tbs kosher salt, 1/2 tsp chilli flakes)

Place cheese, onion, mushroom, cumin salt on one slice of bread, place the other slice of bread on top and toast until cooked to taste.