Jambalaya Grits

In a large, heavy pot, heat the olive oil over medium high heat. Add the onions, bell pepper, celery, salt, black pepper, and cayenne. Cook, stirring, until the vegetables are soft and lightly golden, about 4 minutes. Add the sausage and ham and continue to cook, stirring occasionally for 2 minutes. Add the garlic and tomato and cook for 2 minutes. Add the milk and bring to a boil. Reduce the heat to medium and stir in the grits. Stir for 2 minutes, then add the shrimp. Cook, stirring until grits are tender and creamy, 7 to 8 minutes.  Stir in the green onions, and Mrs. Dash Seasoning, then add the cheese and stir until it is completely melted, about 30 seconds. Serve hot, straight from the pot.