Cut the bell peppers into thin strips after removing stems and seeds. Peel and cut the potato into thin strips, soak in water for 5 minutes, then drain. Microwave the potato in a heatproof container covered with plastic wrap for 4 minutes at 600W, then let cool.

Lay a slice of pork loin vertically, season with 1/8 tsp salt, a pinch of pepper, and spread 1/8 tsp grated garlic. Dust both sides of the pork with flour and place bell pepper, potato, and cheese (1/8 portion each) on the bottom half. Roll tightly. Repeat for all 8 rolls.

Heat olive oil in a frying pan over medium heat. Place the rolls seam-side down and cook until browned on all sides.