Coating the bottom of a hot deep skillet, add olive oil. Add garlic to the hot oil; stirring often, cook 30 seconds to 1 minute. Add mussels, clams, shrimp and calamari. Season with parsley, red pepper flakes, salt and pepper. If desired, add 1/4 cup dry white wine; stirring often, reduce slightly. Add marinara sauce or tomatoes; cook uncovered for 5 minutes or until shells have opened and tomato sauce has reduced. Discard any unopened shells and serve over cooked linguini.
Makes: 2 to 4