Chilled Garbanzo And Potato Salad With Onion And Garlic

• 4 garlic (cloves minced)
• 3 italian tomatoes (plum)
• 1/2 onion (red minced)
• 575 gr potatoes see note (red)
• 500 gr garbanzo beans
• 120 ml water
• 30 ml wine vinegar (red)
• 16 gr spinach see (fresh)
• 16 ml extra-virgin olive oil
• 2 gr parsley (fresh minced)