Spray a large deep frying pan with low-calorie spray and place over a medium heat.
Add the onion and peppers and fry for 10-15 minutes, stirring, until the onion is golden and the peppers are softening.
Add the ginger, garlic, red chilli and curry powder, stir and cook for 1-2 minutes.
Add the dairy-free coconut milk alternative and stir, then simmer, uncovered, over a low heat for 4-5 minutes.
Add the drained prawns and cherry tomatoes and gently stir in.
Simmer, uncovered, for 4-5 minutes until the prawns are just cooked, taking care not to overcook them.
Stir in the spinach and immediately remove from the heat. The heat in the curry will make the spinach wilt and soften, so take care not to overcook the spinach. Season to taste.
Serve with basmati rice or an accompaniment of your choice.