Make this easy and delicious meal when chard is in season locally to make sure the greens bring their buttery best to this combination of bite-sized pasta and simple beans.
1 Tbsp. plus 1 tsp. olive oil, divided
1 (16 oz.) pkg. gnocchi
1 yellow onion, thinly sliced
4 cloves garlic, minced
1/2 cup water
6 cups chopped chard leaves
1 (15 oz.) can diced tomatoes with Italian seasonings
1 (15 oz.) can white beans, drained and rinsed
1/4 tsp. pepper
1/2 cup shredded part-skim mozzarella cheese
1/4 cup shredded Parmesan cheese