• Wash and dry produce. • Halve, peel, and finely dice onion. Peel and mince or grate garlic. Trim and quarter zucchini lengthwise; cut crosswise into 1/2-inch-thick pieces. Drain beans. Pick thyme leaves from stems; mince leaves until you have 1 tsp (2 tsp for 4 servings). Roughly chop parsley.

• Heat a large drizzle of oil in a large pot over medium-high heat. Add onion; cook, stirring occasionally, until softened, 5-6 minutes. • Add garlic; cook until fragrant, 30 seconds. • Stir zucchini, beans, minced thyme, tomato paste, stock concentrates, 31/2 cups water (7 cups for 4 servings), and a big pinch of salt and pepper into pot. • Bring to a boil, then reduce to a low simmer; cook, uncovered, until zucchini is just softened, 6-9 minutes.

• Stir couscous into pot. Cover and cook until couscous is tender, 7-9 minutes. Taste and season generously with salt and pepper.

• Divide soup between bowls. Top with crème fraîche. (TIP: Cut a corner of the crème fraîche pouch to create a piping bag!) Garnish with chopped parsley and serve.