Farm-Style Sausage Bake

6 medium potatoes (about 2 pounds), peeled and cubed

3/4 cup milk

2 tablespoons butter

3 to 4 green onions, sliced

2 garlic cloves, minced

2 egg yolks

Dash each pepper and ground nutmeg

1 pound smoked sausage, sliced

1/2 cup cubed part-skim mozzarella cheese

2 tablespoons grated Parmesan cheese

2 tablespoons dried parsley flakes

1 teaspoon dried thyme or rubbed sage

Place potatoes in a large saucepan and cover with water. Bring to a boil. Reduce heat; cover and simmer 15-20 minutes or until tender. Preheat oven to 400°. Drain potatoes and transfer to a large bowl; mash potatoes. Beat in milk, butter, green onions, garlic, egg yolks, pepper and nutmeg until light and fluffy. Stir in sausage, cheeses and parsley. Spoon into a greased 2-qt. baking dish. Sprinkle with thyme. Bake, uncovered, 30 minutes or until a thermometer reads 160°.