Brown the Meat: In a skillet over medium-high heat, sauté the ground beef until it is browned and cooked through. Remove any extra grease by draining it from the skillet.
Assemble the Stew: Toss the browned ground beef, diced potatoes, sliced carrots, and chopped onion into your slow cooker. Stir to combine.
Make the Sauce: In a separate bowl, whisk together the water, tomato paste, oregano, onion powder, minced garlic, salt, and pepper.
Slow Cook: Pour the sauce mixture over the meat and vegetables in the slow cooker. Stir gently to coat everything. Cover and cook on low heat for 10 hours.
Serve: Ladle the hot stew into bowls. Optionally, serve it with a side of crusty bread for dipping.
Enjoy this simple, comforting meal!