This has become one of my regular go-to soups. It's fast and easy, and doesn't require a lot of ingredients + it tastes great. It comes from a handwritten recipe I got from one of my Mom's cookbooks. 

Nutritional fact: lentils are a great source of protein

Red Lentil Soup

3 tbsp olive oil

1 large onion

2 garlic cloves

1 tbsp tomato paste

1 tsp cumin

1/4 tsp salt

1/4 tsp pepper

optional: chili powder/cayenne if you like it a little spicy

1 litre veg stock

2 cups water

1 cup red lentils

1 large carrot

juice of 1 lemon

3 tbsp cilantro

Fry onion, add garlic. Stir in spices, add broth & water, lentils & carrots. Simmer 30 mins. Puree half. Stir in lemon juice.