SautÃ© sausages in heavy large skillet over medium-high heat until light brown, breaking up clumps with back of spoon, about 5 minutes. Add bell peppers, onion and garlic and sautÃ© until tender and golden brown, about 12 minutes. Add stock and pepper; simmer until liquid is slightly reduced, about 6 minutes.
Meanwhile, cook pasta in large pot of boiling salted water until just tender but still firm to bite. Drain pasta.
Add pasta to skillet; toss to combine. Add 1/4 cup Parmesan; toss to blend. Season with salt and pepper; serve immediately.
2011, 2012, 2015