Linguine with Black Bean Sauce

Oil for frying
1/2 cup chopped onion
1 clove garlic, minced
1 can (15 oz) black beans, undrained
½ cup water
1 cup peas (optional)
4 tsp olive oil
1 tsp basil
12 oz. linguine
salt & pepper to taste
grated Parmesan to top, optional

1. Cook linguine according to package directions
2. Meanwhile, saute onion & garlic in saucepan; set aside
3. Put beans & water in blender & puree until smooth; pour into skillet with onion-garlic mixture; heat over medium heat, adding peas, olive oil, basil, salt, & pepper; cook until mixture thickens slightly
4. Place linguine on dinner plates & top with sauce & cheese.