Place the cashews into a medium size bowl with hot water and soak for no less than 4 hours or over night.
Clean and chop the sweet bell pepper and small onion.
In a medium skillet, on medium high heat, add oil, diced peppers, onion, and minced garlic, cook until soft and slightly browned. Set aside to cool.
Drain and rinse the cashews after soaking, set aside.
Preheat the oven to 400°F.
Add the soaked cashews into the blender with oil, tomato paste, mustard, pasta sauce, and all the seasonings.
Once the sauteed vegetables have cooled, add to the blender.
Measure the vegetable broth in a large measuring cup and add the cornstarch.
Mix until there is no lumps.
Slowly add the vegetable broth mixture to the blender as you turn on the blender to a low speed.
Once all the broth is added to the blender, continue slowly increasing the speed to the highest setting.
Continue at the highest speed for about 1 to 2 minutes.
Now slowly decrease the blender speed.
Continue blending if the cheese isn't smooth enough to your liking.
After the cheese is well blended and smooth, set aside.