Grits Casserole with crumbs

2 cups whipping cream or 2 cups half-and-half cream 8 cups chicken broth , divided 2 cups grits , regular 1 (16 ounce) bag collard greens, frozen 1 cup butter[...]

4 slices French bread, cubed (each slice should be about 1 ounce) 1/2 cup grated fresh parmesan cheese 2 tablespoons finely chopped fresh parsley 7 cups[...]

1 cup grits 4 1/2 cups salt water 1/2 cup butter 8 ounces sharp cheddar cheese 1 teaspoon garlic powder (or substitute 1 package garlic cheese rolls for 8[...]