Foryoueats: Creamy Garlic Mushroom Orzo

8 ounces uncooked orzo

3 tablespoons butter, divided

1 pound mixed mushrooms, sliced (I used half baby bella, half shiitake)

1 large shallot, minced

5 large garlic cloves, minced

1/2 teaspoon crushed red pepper flakes

1/2 cup heavy cream

fine sea salt and freshly-ground black pepper

1 ounce freshly-grated Parmesan cheese

2 handfuls fresh baby spinach

1/2 cup loosely-packed chopped fresh basil

zest and juice of 1 small lemon (optional)

Creamy Garlic Mushroom Orzo