To prepare a split pea and lentil soup with vegetables soups recipe, you will first need to prepare the following ingredients: Split Peas and Lentils: Peel, cut, and shred 1 12 lb (450 g) of split, hulled and unpeeled lentils. Add to the pot, along with the remaining ingredients. Bring to boil, then reduce the heat to low and simmer for 20 minutes, stirring occasionally. Remove from heat and stir in 1 cup (240 ml) chopped parsley. Serve with sour cream.