Season the bacon liberally with black pepper. I love Turkey Bacon but it needs the extra kick of pepper.
Heat a large skillet over medium heat. Add bacon, and cook until crisp (about 6-8 minutes). Watch the bacon and turn frequently. I find that Turkey bacon burns much easier than regular as it has less fat.
Once the bacon is finished cooking, remove bacon from the pan with a slotted spoon and drain on paper towels. Add enough olive oil to the skillet to total about 2 Tablespoons. Add garlic, shallots, and sprouts. Season with salt and pepper.
Cook for about 3 minutes, or until the sprouts begin to brown. Add the stock. Season again with salt and pepper. Cook about 10-12 minutes or until most of the liquid has been absorbed.
In the meanwhile, bring a large pot of water to a boil, add salt, and cook the pasta according to the manufacturer's directions. Be careful not to over cook.
Drain but reserve about 1/2 cup of the cooking water. Return pasta to the pot. Stir in brussels sprouts mixture, cooking liquid, cheese, sage, and bacon. Drizzle with a bit of olive oil. Stir until well combined.
Serve along side your favorite main dish or as a main dish on its own.