In a large bowl, combine ham, pork and beef; mix well. Add eggs; mix well. Blend in crumbs and milk. Form into 1-1/2-in. balls. Place in a single layer in 12 ungreased 13-in. x 9-in. baking pans or larger pans if available; set aside.
In a bowl, combine sauce ingredients. Divide evenly among pans, covering the ham balls. Bake, uncovered, at 350° for 60 minutes or until hot and bubbly.