In a large, heavy soup pot sprayed with non-stick spray, stir-fry onion and garlic until golden brown. Remove from pot and set aside. Re-spray pot with non-stick spray and brown beef cubes over medium-high heat.
Add cooked onion and garlic to pot. Add water, bouillon cube, paprika, Morton Lite Salt Mixture and tomato paste or tomato. Cover and simmer for 4 hours. Add potato and simmer for 15 minutes longer.