In a large nonstick skillet over medium heat. Add the bacon and pancetta. Cook, stirring occasionally, until the bacon and pancetta are brown and crispy, about 12 minutes. Using slotted spoon. Remove the bacon and pancetta pieces to paper towels to drain. Add potatoes and garlic to the pan. Season with salt and pepper. Cook, stirring frequently, until the potatoes are golden and cooked through, about 25 minutes. At the time cooked bacon and cooked pancetta into the skillet and cook for five minutes. Season with salt and pepper.