Combine the stock, oil, celery, zucchini and scallions in a large, deep skillet; season generously with salt and pepper. Cook over medium-high, stirring occasionally, until crisp-tender, adding the beans halfway through, about 10 minutes total. If you’d like to make it brothier, add 1/3 cup vegetable stock and warm for 1 minute. Season with salt and pepper.
Step 2
Divide among shallow bowls. Top with a dollop of crème fraîche, drizzle with pesto and top with celery leaves. Serve with couscous or grilled bread.