Add the oil, onion, and garlic to a large pot and stir well. Medium heat, sauté for 3 to 5 minutes.
Add salt, squash and sweet potato and stir to combine. Sauté for 3 to 5 minutes.
Add broth, diced tomatoes (with juices), coconut milk, lentils, tomato paste, turmeric, cumin, chili powder, cayenne, cooked quinoa and pepper. Stir well to mix all the ingredients.
Bring to a boil. Reduce the heat to medium, simmer uncovered for 30 minutes.