For the lentils: wash vigorously in cold water 1-2 times. Then soak with boiling water for 5-10 minutes while you prepare the other vegetables.
Add olive oil, ground meat, and onions to the pressure cooker. Set to cook on low for 8 minutes while you finish chopping the remaining vegetables. Stir occasionally.
Once the meat starts to brown, add garlic and ginger.
Back to the lentils: pour out the hot water, and rinse with cold water. Repeat. After the second soak, rinse thoroughly with cold water until no more bubbles form. Drain.
Once fragrant, add your spices, bell pepper, mushrooms, and tomato paste. Stir to incorporate. Let cook another couple of minutes, taking care not to burn.
Add the chopped tomatoes and potatoes to the pot with the lentils.
Now pour 1 1/2 cups of hot water into the pot and give it a stir.
Set your pressure cooker for 7 minutes on high. Let the pressure natural release for 5 minutes.
Once it's finished cooking, add the soymilk and soy sauce to taste.
Serve with rice or naan, and spritz with a bit of lemon for extra tang!