Mushroom Alfredo Penne Bake

Bahan-bahan (10 porsi)

• 1 lb . whole wheat penne pasta
• 1 head cauliflower (about 6-7 cups of florets)
• 3 cups reduced sodium chicken broth, divided
• 3/4 cups milk
• 1/4 cup olive oil
• 1 teaspoon salt
• 2 cloves garlic
• 24 ounces fresh sliced mushrooms
• 4 tablespoons butter, divided
• 1 cup shredded Gruyere cheese
• fresh sage, sliced into thin ribbons
• extras: caramelized onions, bacon, sausage