Here are some tips for visiting Mexican Grand Deli at 313 Grand Ave, New Haven, Connecticut:

1. **Try the Tacos**: The tacos are a customer favorite, so consider trying different fillings like carnitas, carne asada, or pollo.

2. **Check Daily Specials**: Look out for daily specials which may showcase unique menu items or promotions.

3. **Salsa Selection**: Don’t miss the variety of salsas available; they can enhance your meal’s flavor significantly.

4. **Takeout Option**: If you're short on time, the deli offers takeout, making it convenient for a quick meal.

5. **Catering Services**: Inquire about catering options for events, especially if you’re planning a gathering or celebration.

6. **Support Local**: Consider trying other local products they may offer alongside traditional deli items.

7. **Parking**: Be mindful of parking options on the street to ensure a hassle-free visit.

Enjoy your culinary experience at Mexican Grand Deli!