Make the Mashed Potatoes:

• In a large pot, cover cubed potatoes with water and bring to a boil. Cook for 15–20 minutes or until fork-tender. Drain thoroughly.
• Return potatoes to the pot. Add butter, Greek yogurt, and milk. Mash until creamy.
• Season with salt and pepper. If using, mix in whey protein powder until well combined. Set aside and keep warm.

Make the Ground Beef and Gravy:

• Heat olive oil in a large skillet over medium heat. Add ground beef and cook until browned, breaking it up as it cooks. Drain any excess fat.
• Add chopped onion and cook 2–3 minutes until softened. Stir in minced garlic and cook another minute.
• Blend the white beans with 1/4 cup beef broth until smooth (optional for texture). Add the blended beans (or whole, if preferred) to the pan.
• Sprinkle flour over the beef and stir well for 1 minute to cook off the raw flavor.
• Gradually add beef broth while stirring. Bring to a simmer and cook for 5 minutes or until thickened.
• Stir in Worcestershire sauce, thyme, salt, pepper, and a splash of balsamic vinegar (if using). Taste and adjust seasoning.

Assemble and Serve:

• Spoon mashed potatoes onto plates. Top with generous scoops of the beef and gravy mixture.
• Serve hot and enjoy your high-protein comfort meal!