Heat the oil in a skillet over medium heat. Add the onion, garlic & dry seasonings and cook for 2 minutes, stirring frequently.
Add the tomato paste & red curry paste and mix it in. Cook for another 2 minutes. Pour in the coconut milk & soy sauce and mix to combine. Add the lentils, mix and bring to a gentle boil. Lower the heat and simmer for 10 minutes.
Add in the peanut butter & lime juice and mix. Give it a taste and adjust the seasonings as needed. Finish it off with the cilantro.
Serve hot over rice or with naan/pita on the side for dipping.
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Notes
I bought pre-cooked, steamed, green lentils from Trader Joe's. You can find them in the produce section. You can also find pre-cooked lentils in the canned section at other grocery stores. You can also make lentils from scratch and add them to this recipe.
If you want to add more greens to this, stir in some fresh spinach or kale when you add the lime juice.