Cut the beans finely and grate the carrots. Combine coconut,green chilly, small onion, garlic, turmeric powder and jeera. Mix it well using your hands. Heat oil in a pan and splutter mustard seeds. Add curry leaves & the coconut mixture. Fry it for 2-3 minutes (do not make the coconut brown). Add the sliced beans, grated carrots & salt. Combine everything well. Sprinkle around 1 tbsp water & cover and cook it on low flame till its done. This should be ready in 5-10 mins, approx.
Notes
Give it a stir once in between, otherwise it may stick to the bottom. You can increase the amount of coconut if you like.