Creamy Baked Tortellini

Bahan-bahan (8 porsi)

• 18 ounces refrigerated cheese tortellini
• 2 cups diced ham
• 2 tablespoons butter
• 2 cloves garlic (minced)
• ½ teaspoon dried basil
• 1 tablespoon all-purpose flour
• salt and pepper to taste
• 1 ⅔ cups whole milk
• 1 ½ cups shredded sharp cheddar cheese (divided)
• ⅓ cup shredded Parmesan cheese
• 1 cup frozen green peas (thawed)