1. Bring first 3 ingredients and 3 cups water to a boil in a medium saucepan over medium-high heat. Stir in grits, and reduce heat to medium-low. Cover and simmer, stirring occasionally, 15 to 20 minutes or until tender.
2. Fold in both cheeses, stirring until melted; remove from heat. Cover and let stand 5 minutes. Transfer to a serving platter. Top with Roasted Tomatoes.
Note: Add up to 1/4 cup water after cooking grits, if desired, for a thinner consistency.