Creamy dill and caper lentils with grilled halloumi

oil

onion, (finely diced)

pre-cooked puy lentils (~ 1 1/2 cups) - (or boil them yourself with a bay leaf)

fresh dill, (chopped)

lemon juice

capers, (roughly chopped)

mascarpone cheese or creme fraiche

Black pepper

water

large slices halloumi