Heat the olive oil over a medium heat in a frying pan and add the garlic slices. Cook for a few minutes until they're softened then remove from the heat.
Cook the pasta according to packet instructions. Keep a mugful of pasta water before draining.
Put the garlic and oil back on the heat and add the butter. Once the butter is melted add the chilli flakes, smoked paprika, tomatoes and prawns. Cook the prawns for a couple of minutes until pink and opaque. The tomatoes will have softened but won't have fallen apart.
Add the pasta to the prawns followed by the lemon zest, pasta cooking liquid and plenty of salt and pepper. Toss everything together well with tongs then add the feta and basil and toss again.
Serve with a drizzle of olive oil and more feta if desired.
Nutrition information is an estimate and will vary depending on the ingredients used.