Rinse pork tenderloin, dab dry and cut into about 12 medallions. Wrap each medallion with a slice of bacon. Grease a casserole dish and place the medallions close together. Wash, clean and quarter the tomatoes.
Remove cores. Cut the flesh into cubes. Bring cream to the boil in a pot. Peel the garlic, press it through the garlic press, add it to the cream with ketchup and tomato paste. Flavour sauce with the spices.
Add the diced tomatoes. Pour sauce over the meat. Sprinkle breadcrumbs over it and put butter in flakes on top. Bake in the preheated oven (electric range: 175 °C/ convection oven: 150 °C/ gas: level 2) for 40-45 minutes.
Garnish with rosemary if desired. Serve with parsley potatoes and salad.