Find some fresh greens at your local market to use in a salad to accompany this recipe.
Mussels are relatively inexpensive per serving. By checking seafoodwatch.org you will learn that farmed mussels are a good choice. As mussels are vegetarians and filter feeders, they may actually help cleanse the water in which they are grown.
Cook the linguine per the instructions.
Heat the olive oil in a large skillet. Add the anchovies, garlic, oregano, and tomato paste. Stir for about a minute. Add the tomatoes with juice and bring to a boil. Stir in the mussels.
Cover and simmer until the mussels open, about 5 minutes. Discard any mussels that don't open. Season to taste.
Divide the mussels and sauce over servings of linguine.