Saute in olive oil (at least 2 tablespoons) :

5 cloves garlic, chopped, maybe adjusted to taste
Fresh parsley
10 oz. can clams, drained

Add:

1 (8 oz.) bottle clam juice

Simmer:

Scallops
Shrimp

Mussels (steamed separately), optional

Simmer until done. Pour over cooked pasta. Place mussels in shells around pasta, etc.