Heat a large skillet over medium-high heat. Add the butter and cook until it is melted. Add the garlic and sauté for 2 minutes. Add the spinach and sauté until it begins to wilt, about 4 minutes. Add the lemon juice and continue to sauté.

Stir in the flour to incorporate it as much as possible into the spinach. Slowly add the cream, stirring constantly to incorporate it into the spinach. Continue to cook the spinach until the cream has thickened, about 3 minutes. Add the nutmeg, salt, and pepper to taste.

Spoon the creamed spinach into a silver bowl and serve immediately while it is hot.