Lonesome Rose serves Mexican cuisine with a standalone vegan menu, including labeled vegan tacos and desserts. Reviewers highlight the vegan queso, vegan nachos, and 'Tinta de garbanzo' vegan taco as popular choices. The venue features a bright, comfortable interior with notable decor like a brick plant wall, wheelchair accessibility, and an adjacent sideroom lounge with drink specials. While the food quality generally receives praise for flavor and portion size, some mention occasional long waits and loud atmosphere during busy times.