Polenta Creamed Spinach a healthier take on a steakhouse classic

Name: Polenta Creamed Spinach (a healthier take on a steakhouse classic)
Ingredients: 4 tablespoons butter; 1/2 cup chopped shallots; 1 pound spinach, washed & trimmed; 1 cup chicken broth; 1/4 cup yellow polenta; 1 tablespoon all purpose flour; 1/4 cup milk (2% or skim); 1/4 cup parmesan, grated; 1/2 teaspoon salt; 1/4 teaspoon black pepper