Kerang Isi Pesto

Bahan-bahan (5 porsi)

• 1/2 lb . frozen spinach, thawed ($0.85)
• 15 oz . ricotta ($1.99)
• 1 cup shredded mozzarella ($1.00)
• 1/2 cup basil pesto ($0.85)
• 1 large egg ($0.27)
• 8 oz . cangkang pasta jumbo (sekitar 22-25 cangkang) ($1,66)
• 24 oz . saus pasta ($1,19)