Preheat oven to 300°
In a small bowl whisk together sesame oil, Worschetshire sauce, garlic powder, onion powder, cumin, salt, pepper, and MSG.
In a large bowl combine Chex, Crispix, pretzels, and almonds. Drizzle oil/seasoning mix over the dry ingredients and gently fold to combine with a rubber spatula, until evenly distributed.
Spread mixture onto 2 large sheet pans. Reserve the large mixing bowl for a final seasoning.
Bake for 30 minutes, rotating the trays and stirring the mixture halfway through.
When done baking return Chex mix to bowl, sprinkle over five-spice and fold it in with spatula. Allow to cool on the sheet pan, or spread out on paper towel for quicker cooling, before packaging or serving.