Chop the onion in a food processor and set aside. Then chop the celery, carrots, and potatoes in the food processor. Combine in a mixing bowl and set aside.. Mince garlic separately. Set aside.
Rinse split peas removing any discoloured peas or stones.
Heat oil in a 6 quart Dutch oven or large pot with a lid over medium high heat. Add the onion and cook 1 minute until slightly translucent.
Add the chopped potatoes, celery and carrots and Italian seasoning to the pot. Stir and cook for 1 minute.
Add the garlic and stir to mix.
Add 6 cups of vegetable stock, the bay leaves, salt free seasoning, soy seasoning and split peas. Cover and bring to a boil, stirring frequently . Once boiling, reduce heat to low or medium low, to a simmer.
Let simmer 60-90 minutes, covered, stirring often until split peas are completely tender. Add more stock, a cup at a time if needed. Adjust seasoning to taste.
Serve hot with bread or crackers.