In a pressure cooker or large pot combine diced vegetables (courgette, aubergine, pumpkin, onion, kohlrabi, turnips) with stock and 1 tbsp oil. Pressure cook 8–10 minutes or simmer 60 minutes until very soft.
Purée cooked vegetables until smooth.
Pound basil leaves with 6 garlic cloves and 1 tbsp oil to a coarse paste; stir into purée; season with salt and pepper.
Boil soaked kidney beans briskly 20 minutes; then simmer 60–90 minutes until tender (or use canned). Add to soup.
Cook pasta separately until al dente; add to soup and adjust seasoning.