French onion lentil and spinach soup

This soup is healthy, warming, comforting, and filled with iron and fiber. It also tastes better the second day, so double the batch and enjoy the leftovers all week!

Take me to the recipe!

I started making this soup when I was pregnant with Z and the thought of eating meat really turned my stomach. I was looking for nourishing soups that also tasted great and kept me full because while I LOOOOOOVE a soup, they don’t always fill me up unless they’re cream-based or more of a stew.

Enter this soup. It starts off with a base of caramelized onions like you’re making French onion soup. I use a super-quick method for caramelizing onions that might take a minute to get the hang of, but turns raw onions into melty, caramelized goodness in about 20-25 minutes instead of 45-60 minutes. I outline the process here.

Basically, you’re using high heat and a covered pan while also de-glazing every 2-3 minutes to achieve that deep, rich color and flavor by utilizing all of the stuck on bits at the bottom of the pan. It can be tricky to find that sweet spot between browning and burning, but luckily, the onions are pretty forgiving and if they get a little too dark, you can just deglaze with a bit of extra water and turn the heat down a smidge.

Once you have those jammy onions in the bag, you can basically add the rest of the ingredients (with a little watching for a few minutes) and let the stove do the rest of the work.

This soup makes me so so happy. I’ve made it for new moms during those rough postpartum days. I’ve also made it for snow days and arctic days, regular days and special days. I always wish I was eating it in front of a fire wearing a huge sweater and reading a book, but alas, that never happens.

French onion lentil and spinach soup

5 cups sliced onions (about 3 large onions, sliced 1/8th of an inch thick)
3 Tbsp butter or olive oil (or a combo)
2 cups water
½ tsp dried thyme or 2 sprigs fresh thyme
1 tsp kosher salt 
1 Tbsp red wine vinegar
4 cups beef broth 
¾ cup dried green or brown lentils
1 cup frozen spinach or 1 bag fresh baby spinach 

Time: About 1 hour (30 minutes active)
Yield: about 5 cups of soup

 Slice the onions into 1/8th to 1/4th inch slices. 

Heat the oil and butter over a medium flame in a large skillet with high sides. 

Turn the heat up to medium high and add the onions. Cover and cook, for 2-3 minutes until the onions begin to brown and stick to the bottom of the pan. Pour in about 2 -4 Tbsp of water and scrape the brown bits from the bottom of the pan. Cover and cook for 2-3 more minutes and repeat the process. Continue cooking until the onions are a deep brown color, about 20-25 minutes. 

Add the thyme and salt and cook for 1 minute. 

Add the red wine vinegar and cook until evaporated, about 1-2 minutes.

Add the broth and the lentils. Bring to a boil over the highest flame. Once boiling, reduce the flame to low and simmer, covered, for about 30 minutes until the lentils are cooked, but have a little bit of crunch left to them. (Continue to cook for another 10 minutes if you prefer mushier lentils.)

Turn off the flame and stir in the spinach, either frozen or fresh, and stir to wilt. 

Test for seasoning. 

Chicken liver and berry puree

Yup, that's right. Chicken liver for babies. I was hesitant at first too, but we gave some to M when he was around 1 and he LOVED it. Who knew? M likes it plain, but combining it with berries and turning it a lovely purple color definitely makes it more appetizing.

M's passion for chicken liver is helpful since it’s one of our extended family’s staples for holidays and family dinners. And you know what? It’s easy to make and is a protein- and iron-rich dip for crackers or veggies. And it’s delicious. Trust me. Actually, don't trust me: Make it for yourself and see.

If you've made chicken liver before, skip these next few pictures. If you're a liver novice, here's what mine looks like at various stages of cooking:

Stage 1: Put some olive oil in a hot pan and add the livers, making sure that each one has some space in the pan. Cook in batches if you have to.

Stage 2: Ready to flip. Once you see brown creeping up the sides, flip those puppies over and continue to cook.

Stage 3: Add the onions. Once you have an even browning on both sides, add the chopped onions. It's okay if there are some pinkish areas remaining because cooking isn't over yet.

Stage 4: Cover. Once the onions are translucent and the livers are mostly browned (it's okay of there are some slightly pink nooks, but you should see any "raw" patches), cover and cook over a low flame for about 10 more minutes. 

Chopped chicken liver

.75 lb chicken livers
2 Tbsp olive oil
1 large onion
2 hard-boiled eggs
1 Tbsp balsamic vinegar
Salt and pepper

Heat olive oil over a medium flame. Add chicken livers and brown on both sides. Once livers are browned, add the chopped onions. (It’s okay if there are small bits of pink still showing on the livers in the nooks and crannies- see photos.) Cook on medium heat until onions are opaque, about 5-8 minutes. Cover and turn heat to low. Let simmer for another 10-12 minutes or until livers are cooked through.

Immediately add cooked livers and onions and all liquid to a food processor or blender with hard-boiled eggs and balsamic vinegar. Salt and pepper to taste, but I’m usually very generous with the salt at this phase. Pulse the food processor until you’ve reached your desired consistency. Taste again for seasoning.

Yield: about 2 cups

Berry compote

1 pint blueberries
1 pint blackberries
2 Tbsp water

Combine berries and water in a medium sauce pan and bring to a boil. Reduce heat to medium low and simmer until the berries are cooked down, about 15-20 minutes. Let cool slightly. Puree. If your little is opposed to seeds (like mine), pass through a mesh strainer. 

Combo

2 Tbsp Chopped chicken liver
2 Tbsp Berry compote
1 Tbsp Applesauce