Pasta Bacon dan Bayam dengan Parmesan

Bahan-bahan (4 porsi)

• 6 oz . bacon ($2.15)
• 1 yellow onion ($0.25)
• 2 cups kaldu ayam ($0,28)
• 1/2 lb . Semacam spageti ($0,50)
• 1/4 lb . fresh spinach (about 4 cups) ($1.50)
• 1/3 cup grated Parmesan ($0.55)