Bountiful summer vegetables--zucchini, summer squash, fresh tomatoes--are quickly sautéed with protein-rich white beans and topped with Parmesan for a hearty dish. This sauté is endlessly versatile and works well with eggplant, peppers or corn. Double it and toss the leftovers with bowtie pasta for lunch the next day. Serve with: Brown rice or bulgur.
Heat oil in a large nonstick skillet over medium heat. Add onion and garlic and cook, stirring, until beginning to soften, about 3 minutes. Add zucchini, summer squash, oregano, salt and pepper and stir to combine. Reduce heat to low, cover and cook, stirring once, until the vegetables are tender-crisp, 3 to 5 minutes.
Stir in beans, tomatoes and vinegar; increase heat to medium and cook, stirring, until heated through, about 2 minutes. Remove from the heat and stir in Parmesan.