Easy Tuna Pasta Bake

By Fioa

4.07 / 5

15min

30min

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1 (14.6 ounce) package penne pasta
1 tablespoon olive oil
1 tablespoon butter
1 onion chopped
3 (5 ounce) cans tuna drained and flaked
1 cup heavy whipping cream
salt and ground black pepper to taste
½ teaspoon ground nutmeg
1 ¼ cups grated Parmesan cheese