Preheat the oven to 350˚ F.
Grease one baking dish or 6 small baking dishes.
In a large skillet over medium heat place the butter and olive oil.
Add the mushrooms and cook, stirring occasionally, about 7 minutes.
Add the onions and cook, stirring occasionally, until translucent, about 4 minutes. Add the garlic, red bell pepper, corn and cook for about 3 minutes. Remove from the heat and set aside.
In a large bowl, whisk together the eggs, mozzarella cheese, heavy cream, cream cheese, cumin, paprika, salt and pepper.
Add in the rice, basil, cilantro, chives and onion mixture and stir until well combined.
Sprinkle the Asiago cheese over the top. Bake for 30 to 40 minutes until the top is browned.