Cook lentils in salted water until tender, then drain and let cool slightly.
Mash the lentils with a fork or potato masher. Mix in breadcrumbs, flour, salt, and pepper until the mixture holds together.
Form small dumplings with your hands and set aside.
In a pan, heat a bit of oil and fry the onion and garlic until fragrant.
Add curry paste, stir, and pour in coconut milk. Let simmer until slightly thickened.
Add soy sauce and adjust seasoning to taste.
Gently place the lentil dumplings into the sauce and let them simmer for about 10 minutes.
Serve warm with fresh cilantro on top and maybe a side of rice or naan.