Cook lasagna noodle pieces in 3 quarts boiling water.
Add a bit of cooking oil and a dash of salt to pot and cook for 14 to 16 minutes. Drain well.
Fry ground beef in frying pan until browned, then drain. Add to slow cooker.
Add remaining ingredients. stirring well.
Add lasagna noodle pieces and stir, then cover.
Cook on low 7-9 hours or on high 3 1/2 to 4 1/2 hours.