Black Walnut Cafe Research Park Enjoy a cold brew coffee and crisp salads on hot days, or hot soup and hearty sandwiches when it's cold. View Hours and Menu Nearby Eateries Closed DaVinci's Café Spencer Engineering Image Image Image Closed Casa Burrito Nat Sci Nucleus Image Closed Pizza Pizza Nat Sci Nucleus Image 8:00 am-5:00 pm Einstein's Café Nat Sci Image Image Image