Cook linguine according to package directions, omitting salt and fat. 2. Heat oil in a Dutch oven over medium heat. Add shallots and garlic; cook 5 minutes, stirring occasionally.
Add pasta sauce and red pepper. Reduce heat; simmer, uncovered, 5 minutes. Stir in mussels; cover and simmer 6 to 8 minutes or until shells open. Remove mussels from heat; discard any unopened shells.
Divide linguine evenly among 4 bowls. Place mussels over linguine, and ladle marinara sauce over mussels. Sprinkle with basil.