Wash the shrimp thoroughly and pat dry.
Finely chop the onion and garlic.
Boil the orzo in boiling water for 8 minutes, then drain.
Heat olive oil in a pan and sauté the onion and garlic.
Add the shrimp and cook until it changes color.
Add the cooked orzo, milk, and Parmesan cheese, then mix and simmer together.
Season with salt and pepper to taste.
Finish with parsley.