Preheat oven to 375 degrees and spray a 9x13 inch casserole dish with non-stick cooking spray.
Cook the ground sausage in a large skillet over medium-high heat, stirring until the sausage is crumbly (about 15 minutes). Drain grease and place cooked sausage in a large mixing bowl.
Bring the 4 cups of water to a boil in a medium sauce pan over medium-high heat. Stir in the grits, chicken bouillon, and heavy whipping cream. Reduce the heat to medium-low and cook until the grits are thick, about 15 minutes. Stir occasionally.
In the sausage bowl, stir together the shredded cheese, melted butter, and beaten eggs. Fold in the cooked grits until well combined.
Pour the grits and sausage into the greased casserole dish. Bake, uncovered, in the preheated oven for 30 to 40 minutes or until a toothpick inserted in the middle comes out clean.