Lamb tikka masala recipe on Second Nature

Name: Lamb tikka masala recipe on Second Nature
Cuisine: Asian, Indian
Ingredients: 400g; lamb, diced; olive oil; 4 cloves; garlic, minced; 1-inch; ginger, minced; green chilli, finely chopped; 1 x 400g; tinned tomatoes; tomato paste; red bell peppers, diced; medium onion, diced; garam masala; ground turmeric; cumin; paprika; 4 large handfuls; spinach; double cream; 1 bunch; fresh coriander, roughly chopped