Shrimp and pasta

2 cloves garlic, pressed

2 cups sliced fresh mushrooms

1/2 cup diced onion

1/4 cup butter

2 cups heavy cream

1/2 cup grated Parmesan cheese

2 egg yolks, slightly beaten

1/4 teaspoon thyme, crumbled

1/2 cup frozen peas, thawed

1/2 pound hot cooked capellini or your favorite pasta

Black pepper