Using ingredient ketsup

My Mom's Stuffed Cabbage Rolls

• 3 pats butter
• 1 onion
• 1 egg
• 1 head cabbage
• 1/2 bacon
• 1/4 ketsup
• 700 gr chuck (ground)
• 450 ml tomato sauce
• 55 gr bread crumbs
• 3 gr steak seasoning salt