Squash Parmesan

• 1 onion
• 1 k
• 1/2 monosodium glutamate
• 240 ml milk
• 60 ml water
• 40 gr parmesan cheese (grated)
• 9 gr melted butter
• 3 gr salt
• 3 slices squash (yellow)
• 3 slices bread with crusts (sliced white)