Shrimp Linguine Alfredo

1 (12 ounce) package linguine pasta

1/4 cup butter, melted

4 tablespoons diced onion

4 teaspoons minced garlic

40 small shrimp, peeled and deveined

1 cup half−and−half

2 teaspoons ground black pepper

6 tablespoons grated Parmesan cheese

4 sprigs fresh parsley

4 slices lemon, for garnish

Cook pasta in a large pot of boiling water until al dente; drain.

Meanwhile, melt butter in a large saucepan.

Saute onion and garlic over medium heat until tender.

Add shrimp; saute over high heat for 1 minute, stirring constantly.

Stir in half−and−half.

Cook, stirring constantly, until sauce thickens.

Place pasta in a serving dish, and cover with shrimp sauce.

Sprinkle with black pepper and Parmesan cheese.

Garnish with parsley and lemon slices.