Franco's Pasta With Winter Squash And Potatoes

• 2 garlic (cloves chopped)
• 1 fleshed potato (yellow peeled)
• 3/4 about (cubes)
• 5,700 ml water
• 170 gr spaghetti
• 140 gr squash (peeled)
• 120 gr parmigiano-reggiano (grated)
• 45 ml extra-virgin olive oil
• 26 gr salt coarse sea salt (plus)
• 3 gr italian parsley (chopped)