Tomato Red Pepper Soup for Kids

Tomato Red Pepper Soup for Kids

A Cozy Winter Recipe That Sneaks In Extra Veggies and Protein

Recipe by: Chloe Grubb

Winter brings out the cravings for warm, comforting meals, and this tomato red pepper soup delivers all the cozy vibes with very little effort. It’s naturally sweet from roasted peppers and carrots, silky smooth when blended, and has an added boost of lentils for plant-based protein.

Why This Soup Works for Kids (and Busy Parents)

Roasted red peppers and tomatoes are a kid-friendly combination. They turn sweet and mellow in the oven, which makes the flavor cozy and approachable. The lentils blend right in, so they’re a quiet nutritional bonus rather than a noticeable ingredient.

Here’s why families tend to love it:

  • The flavor is tomato-forward with a natural sweetness from roasted peppers.
  • Blending everything creates a smooth texture that feels comforting for kids.
  • Lentils boost the protein without changing the taste.
  • Leftovers reheat beautifully for next-day lunches.

It’s one of those soups that tastes like it simmered all day, even when it didn’t.

Cozy Tomato Red Pepper Soup with a Protein Boost

Ingredients

  • 2 red bell peppers, quartered
  • 1 medium onion, cut into eighths*
  • 2 large carrots, large dice
  • 4 celery stalks, large dice
  • 2 tablespoons extra virgin olive oil, plus more for drizzling
  • 1 28-ounce can diced tomatoes with juice**
  • 1 small garlic bulb
  • Salt and pepper to taste
  • 2 quarts vegetable stock or water
  • ¾ cup red lentils***
  • 4 tablespoons tomato paste
  • 2 sprigs fresh basil, leaves removed, plus more for serving
  • Pinch of cinnamon, optional
  • ½ teaspoon sugar, optional

How to Make It

Roast the vegetables

Heat oven to 450°F and lightly oil a sheet pan.

Toss peppers, onion, carrots, and celery with 1 tablespoon olive oil, salt, and pepper. Spread across two-thirds of the pan.

Prepare the tomatoes

Strain the canned tomatoes into a pot, reserving the juice. Toss the tomatoes with the remaining olive oil, salt, and pepper, and spread them across the last third of the sheet pan.

Roast the garlic

Cut the top off the garlic bulb. Place on foil, drizzle with olive oil, salt, and pepper, wrap, and set in the middle of the tray.

Roast everything for 45 to 55 minutes until softened and starting to brown.

Simmer the lentils

In the pot with the reserved tomato juice, add:

  • Vegetable stock
  • Lentils
  • Tomato paste
  • Basil leaves
  • Cinnamon and sugar (if using)

Bring to a boil, then reduce to a simmer. Cook 10 to 15 minutes, until lentils are soft and starting to fall apart.

Add the roasted garlic

Open the foil, let the garlic cool slightly, then squeeze the cloves from the bulb and discard the skins.

Blend until smooth

If using an immersion blender:
Add all roasted vegetables to the pot and blend until creamy.

If using a high-speed blender:
Transfer everything into a large bowl, blend in batches until silky, and return the soup to the pot.

Taste and adjust seasoning.

How to Serve

Pair It with Their Favorite Sandwich

Heat it up in the morning and ladle into the insulated food container, alongside their favorite sandwich. It works great paired with the Shuttle lunch box. Tomato soup and grilled cheese are a classic for a reason.

Other pairing ideas:

  • Turkey and cheese sliders

  • Pesto and mozzarella sandwiches

  • Ham and Swiss melts

  • Simple hummus and veggie wraps

Whatever your child’s go-to sandwich is, it works here.

Easy Add-Ons

  • Bread strips for dipping

  • A swirl of yogurt or pesto

  • Basil ribbons

  • Crackers or fruit on the side

Frequently Asked Questions

Is this good for picky eaters?

Absolutely. The flavor profile of this soup leans toward a classic tomato. Blending the other veggies and lentils makes for a smooth texture that kids love.

Do the lentils make the soup taste different?

Not at all. They blend completely, adding protein and heartiness without any strong taste.

Can I make it ahead?

Yes. The soup keeps well in the fridge for several days and freezes easily. Just reheat and pack warm in the morning.

A Cozy Winter Meal That Feels Good All Around

This tomato red pepper soup checks all the boxes: warm, familiar, full of flavor, and packed with veggies in a way that feels natural. Pair it with a favorite sandwich and you’ve got a winter meal that hits comfort and nutrition at the same time.

If you want to keep warm meals simple during the school week, check out our Shuttle Lunch Box and Insulated Container. Both make it easy to send soup and sandwiches without extra fuss.