QUICK, FRESH, AND EASY

Our cafeterias serve freshly prepared meals, snacks, and beverages in a relaxed, comfortable setting — perfect for a quick lunch, staff dining, or a casual bite without the wait."

That's essentially your existing copy, already at a good, brief length — I'd keep it as is rather than trim further, since shortening it more would start losing the "convenience" and "comfort" cues that make it feel welcoming.