LKA Roasted Cauliflower Soup | A Cozy, Healthy Recipe to Cook With Kids

Kids in the Kitchen is our blog series, where in collaboration with Click and Grow, we’re sharing LKA recipes and tips for getting kids interested in food and involved in the kitchen.

LKA’s Roasted Cauliflower Soup is cozy, comforting, and thoughtfully layered with flavor. Roasting the cauliflower brings out its natural sweetness, while thyme, Dijon mustard, and a pinch of nutmeg add warmth and depth. Blended until smooth and finished with crunchy pumpkin seeds, this healthy soup offers contrast in both texture and taste.

Why This Roasted Cauliflower Soup Is Great for Cooking With Kids

This recipe is especially well suited for cooking with kids. It creates meaningful opportunities to practice sequencing, measuring, transferring ingredients, and observing how heat transforms food — all while using real tools with purpose.

Prep time: 15-20 minutes 

Cook time: 45-55 minutes 

Serves: 2 

Ingredients 

• 1/2 head cauliflower (approx. 400g), rough chopped 
• 45 g white onion, small dice 
• 2 button mushrooms, small diced 
• 1 garlic clove, minced 
• 1/8 lemon 
• 1 1/2 cups vegetable broth 
• 7 g butter, room temperature 
• 1 1/2 tbsp olive oil, divided 
• 1/2 tsp salt, divided 
• 1/4 tsp dry thyme 
• 1/4 tsp Dijon mustard 
• 1/8 tsp pepper 
• 1/8 tsp paprika 
• Pinch nutmeg 
• 1/3 cup chickpeas, drained 
• 1/2 tsp avocado oil 
• 1/8 tsp salt 
• 1/8 tsp seasoning of choice (paprika, dry herbs, nutritional yeast, cumin etc.) 

Instructions 

1. Preheat oven to 400 degrees. 

Inviting children to help preheat the oven is a simple yet powerful way to start a conversation about how heat at different temperatures transforms ingredients. It also creates a natural moment to talk through what will happen first, next, and last—building sequencing, focus, and understanding before cooking even begins. 

Did you know that cauliflowers also grow in purple, orange and green varieties? This is a great opportunity to use a variety of colorful cauliflower if you find them in season! 

3. Roast the cauliflower for 18-25 minutes until tender and golden brown. Set aside to cool down. 

As the cauliflower roasts, invite children to notice the color and aroma changes. Waiting for it to cool reinforces patience and safety awareness. 

4. In a pot over medium heat, warm up 1/2 tbsp olive oil and cook the onions until translucent. 

Children can observe how heat softens the onions and changes their appearance, as a hands-on lesson in cause and effect. 

5. Add the butter and mix in the mushrooms, 1/4 tsp salt, thyme, pepper and nutmeg. Cook until mushrooms are soft. 

Smelling the herbs and spices before adding them builds sensory awareness and helps children connect flavor with ingredients. 

6. Add the garlic to the pot and cook for a minute. Transfer the mushroom mixture into a small bowl. 

7. In a blender place 3/4 cups vegetable broth, Dijon mustard, half of the cooled roasted cauliflower and half of the onion and mushroom mixture. Blend until smooth. 

Using “half now, half later” reinforces proportion and sequencing—important math concepts grounded in real work. 

8. Transfer the soup into the pot.  

9. Add the remaining cauliflower, mushroom mixture and 3/4 cups vegetable broth to the blender and blend until smooth. Transfer to the pot. 

10. Warm up the soup. Off heat, add a squeeze of lemon into the pot. 

 Let children taste before and after adding lemon to notice how acidity changes flavor. 

11. Serve the soup in a bowl and top with pumpkin seeds. 

 Enjoy! 

In addition to making a delicious Healthy & Hearty Meal, this recipe is about trusting children with real tools, real responsibility, and real skills. When children are invited into the kitchen with intention, they learn confidence, independence, and joy (the LKA way!)