1 Squeeze garlic from heads and mash.
2 Combine mushrooms, green onions, broth, herbs, and garlic in small stockpot; heat to boiling. Reduce heat and simmer, uncovered, until mushrooms are tender and liquid is evaporated, about 20 minutes.
Combine mushroom mixture, tortellini, beans, peas, and half the Parmesan sauce.
4 Mix well and spoon into 2 large steamtable pans. Pour remaining sauce over pans; sprinkle with Parmesan cheese.
5 Bake, uncovered, at 350°F until hot and bubbly, about 50 minutes.
TIP: To roast garlic, cut tops off heads of garlic, exposing cloves; spray with vegetable cooking spray. Wrap in aluminum foil. Bake 425°F until tender, 45 to 60 minutes. Purchased minced, roasted garlic (1/3 cup) can be substituted.
Parmesan Sauce
1 Melt butter in large saucepan; whisk in flour. Cook over medium heat, whisking constantly, 2 minutes. Whisk in milk; heat to boiling, whisking constantly.
2 Reduce heat to low; stir in cheese and nutmeg. Season to taste with salt and pepper.