Preheat oven to 400° + grease baking dish; add sauce to a pan, melt in 4 slices cheese + salt/pep

Peel 2 potatoes + slice into ⅛-inch rounds; cook 5 min in boiling salted water; drain + add to baking dish; top with cheese sauce, 2 slices cheese + salt/pep; cover with foil + bake 20-25; remove foil + broil 2-3 min to brown

Slice bacon in half; on a cutting board, shingle bacon in overlapping slices; heat 1 tbsp oil in pan over med-high; pat loin dry + sear with salt/pep all sides 4 min; set loin on bacon + wrap bacon around loin; set loin on sheet pan seam side down, drizzle with balsamic + bake 10-12 min til cooked thru; broil 2-3 min to crisp bacon