Image of Pasta with Asparagus and Lemon Sauce

Pasta with Asparagus and Lemon Sauce

Prep Time: 20 min
Cook Time: 20 min

Ingredients

  • 2 lemons
  • 1 (16 ounce) box penne pasta
  • 5 tablespoons butter, divided
  • ¾ pound asparagus, trimmed and cut into 1-inch pieces
  • salt and freshly ground black pepper to taste
  • 3 tablespoons all-purpose flour
  • ¾ cup heavy cream
  • 1 ½ cups vegetable broth, or more to taste
  • 4 sprigs fresh parsley, chopped
  • 1 pinch white sugar, or to taste
  • 2 ripe tomatoes, seeded and diced
  • ½ cup freshly shaved Parmesan cheese