Heat the olive oil in a large soup pot or Dutch oven over medium-high heat. Add the onion, carrot, celery, bell pepper, and garlic. Stir well, reduce the heat to medium, cover, and cook for 5-6 minutes, until the vegetables are tender, but not burnt, stirring occasionally.
Add the smoked paprika, oregano, and liquid smoke and mix well. Add the broth, split peas, bay leaf, and salt and pepper, to taste. Bring to a boil. Reduce the heat to medium-low and simmer for 15 minutes. Add the sweet potatoes and continue cooking, uncovered, until the peas and vegetables are tender, stirring occasionally.
Taste and adjust seasonings. Remove the soup from the heat and add the juice of half a lemon. Serve the soup garnished with the spring onions, parsley, and smoked paprika. Bon appétit!
Find it online: https://livitygardens.com/green-split-pea-soup/