Roasted Garlic and Red Pepper Fettucine Alfredo

Ingredients

• 6 large red bell peppers, cut into quarters with seeds and membranes removed
• 2 heads of garlic, roasted and mashed (about 2 tablespoons)
• 16 ounces fettuccine
• 1 tablespoon olive oil
• 1/2 medium onion, diced (about 3/4 cup)
• 2 tablespoons butter
• 1 cup vegetable or chicken broth
• 1/4 cup heavy cream
• 1/4 cup nonfat milk
• 1/2 cup freshly grated Parmesan cheese
• 1 tablespoon fresh chopped parsley
• Salt
• pepper