Heat oil in a pot over medium heat. Add onion and cook until translucent, about 3-5 minutes.
Add garlic, ginger, celery, carrots, and bell pepper and cook 5 min.
Add spices and stir 1 min to toast.
Add lentils and broth. Bring to a boil then reduce heat to simmer for 15-20 min until lentils are tender.
Mix soy milk, nutritional yeast, miso, and peanut butter, then add to the curry. Simmer another 5 minutes.
Taste and add salt as needed. Garnish with lemon juice and chopped cilantro as desired.
Notes
1) Red Lentils: If you have time, I recommend soaking the red lentils for at least 3 hours or overnight. Soaking makes them easier to digest and will speed up the cooking time a bit.2) Vegetable Broth: I use water + 1/2 tsp vegetable bouillon powder.