Step 1

Heat a large straight-sided skillet over medium-high. Swirl in oil, then add sausage and cook, breaking up pieces with a wooden spoon, until beginning to brown, 3 to 4 minutes. Add zucchini and cook, stirring occasionally, until beginning to brown, 3 to 4 minutes. Add tomatoes, season with salt and pepper, and cook until they start to break down and release their juices, 3 to 5 minutes.

Step 2

Meanwhile, cook gnocchi in a large pot of salted boiling water according to package instructions. Reserve 1 cup pasta water; drain. Transfer gnocchi to skillet and toss to coat, adding pasta water as needed to create a silky sauce. Season to taste. Stir in pesto, sprinkle with basil, and serve immediately.