Heat a tablespoon of olive oil in a large pot over medium heat until shimmering, then add chopped onion, carrot, and celery. Sauté for 8-10 minutes until the vegetables are soft, fragrant, and slightly translucent.
Add minced garlic and grated fresh turmeric to the pot. Cook for about 1 minute, stirring constantly, until aromatic and fragrant, with the mixture turning a warm golden hue.
Stir in rinsed lentils along with smoked paprika, and cook for another minute to toast the spices and coat the lentils in flavor.
Pour in the vegetable broth, bringing the mixture to a gentle boil. Once bubbling, reduce the heat to low and cover the pot.
Let the soup simmer gently for 25-30 minutes, stirring occasionally. You'll see the lentils soften and break down, creating a velvety, bright yellow-orange broth.
Uncover the pot and taste the soup. Adjust the seasoning with salt and add a squeeze of fresh lemon juice to brighten the flavors and add a zesty contrast.
If you prefer a creamier texture, use an immersion blender to blend part of the soup directly in the pot until smooth, then stir to combine.
Optional: stir in chopped greens like spinach or kale, allowing them to wilt for 3-5 minutes, adding fresh color and nutrients.
Serve the soup hot, garnished with additional lemon wedges or fresh herbs if desired. Enjoy the velvety, aromatic bowl that feels like a warm hug.