Vegetable tagine with split peas

Name: Vegetable tagine with split peas
Ingredients: 2 tablespoon olive oil; 1 (300g) large red onion, sliced thinly; 3/4 cup (150g) yellow split peas; 2 clove garlic, crushed; 1 (5cm) piece fresh ginger, grated; 3 teaspoon ground coriander; 2 teaspoon each ground cumin and sweet paprika; 1 teaspoon caraway seeds; 1 litre (4 cups) vegetable stock; 400 gram can diced tomatoes; 750 gram butternut pumpkin, cut into 2cm pieces; 350 gram yellow squash, quartered; 200 gram green beans, trimmed, halved widthways; 1/2 cup (125ml) water; salt and freshly ground black pepper, to season; 1/2 cup fresh coriander, coarsely chopped