BSN Lean Dessert Protein makes a protein powder that I think tastes just like chocolate milk. I think the flavor is called chocolate fudge. You actually mix it with water, not milk, but I think it taste like chocolate milk. You can get a sample at
Vitalady.com - Protein Supplements, Vitamins & Minerals, and Safe Snacks!.
You might want to try chocolate Unjury or chocolate Chike, too. I would mix those in milk, not water.
Kelly