Start by heating olive oil in a large pot over medium heat. Once it shimmers, toss in the chopped onion and minced garlic. Stir them until they soften up, filling your kitchen with a mouthwatering aroma.
Add sliced sausage to the pot, stirring occasionally. The sausage will brown beautifully and infuse the base with that signature smoky savoriness we love.
Toss cauliflower florets and kale into the pot. Stir well to coat the veggies in those savory juices. This step begins to build layers of flavor in your soup.
Now, pour in the chicken broth, making sure it covers all the veggies. Season with salt, black pepper, and red chili flakes if you want some heat. Bring everything to a boil, then lower the heat to a simmer.
Cover and cook for about 20 minutes, or until the cauliflower turns tender and the kale wilts to perfection. Ladle into bowls, and don’t forget to garnish with fresh herbs or a drizzle of olive oil for that extra touch.