Place the beans, lightly crushed garlic, and sage in a
large pot with enough water to cover. Bring to a boil
and simmer for about 1 hour, or until the
beans are tender.
Discard the garlic and sage
and season with salt.
Drain the beans, reserving the cooking liquid. Place
half the beans in a food processor and chop
until smooth.
Sauté the chopped garlic in 4 tablespoons of oil in a
large saucepan over medium heat for 2 minutes. Add the
onion, celery, and carrot and sauté until softened.
Pour in the stock and add the tomatoes. Season with salt
and pepper. Cover and simmer over medium heat for 30
minutes.
Add the spelt and cook for 20 minutes.
Stir in the peas, bean puree and reserved whole beans
and cooking liquid. Simmer for 20 minutes more.