Cook lentils: Start by cooking your lentils according to package directions, or cook in the Instant Pot. (To cook in the instant pot: add ⅔ cup dried lentils and 1 cup of water to the Instant pot. Set at high pressure for 8 minutes, let it naturally release for 10 minutes, and then quick release.) While your lentils are cooking, move onto the next step.
Make dressing: Make your dill dressing by combining hummus, dill, lemon juice, and water to a blender. Blend until very smooth. If you'd like to adjust the consistency to make it thinner, add more lemon juice or water as desired.
Season lentils (optional): Once your lentils are done cooking, allow to cool and then mix in the optional salt, lemon juice, and dried oregano (if using).
Make your bowls: Dividing your ingredients into 4 bowls, create your bowls by adding your lentils, quinoa tabbouleh, spinach, artichoke hearts, cherry tomatoes, and cucumbers to your bowls. Add any additional toppings that you'd like, and finish with a drizzle of the dill dressing.