Shrimp and Cauliflower Grits with Hot Sauce Butter

Name: Shrimp and Cauliflower Grits with Hot Sauce Butter
Ingredients: 1 large head cauliflower (about 2 lbs), trimmed, cored and cut into roughly 1-inch pieces; 1 cup heavy cream; 2 cups water; 5 tablespoons unsalted butter (or olive oil), divided; 1 teaspoon freshly-ground black pepper; Sea salt, to taste; 6 ounces sharp cheddar cheese, or to taste; 4 slices thick-cut bacon, diced; 2 cloves garlic, minced; 6 ounces cremini mushrooms, thinly sliced; 6 green onions, green part only, sliced into rounds; 1 pound medium or large shrimp, peeled, tails removed and deveined if desired, and patted dry with paper towels; 4 teaspoons hot sauce (such as Tabasco), or to taste; Splash lemon juice, optional