To start with, I don't usually mention restaurants, but in this case I have to make an exeption.
The mexican restaurang Matias had great service and fast delivery time. It's located right next to the Leidseplain which is a center for many activities.
Favorite Dish: My favourite dish was Nachos Gigantes with minced meat, bbq chicken, nachos, guacamole, creme fraiche and lots of cheese melted on the portion (price: around 14 euros). The food was excellent and I would have had more if there had been any space left in my stomach.
As a side dish they also gave a delicious salad and french fries.
Curious about the quality of Dutch Mexican, we decided to give Matia's a try. While it wasn't true Mexican, or even Tex-Mex, it was tasty food. The spice from the peppers came more from the pickling than it did from the actual peppers. Though not spicy-hot, the meals were seasoned and presented nicely. The service was prompt and facilities were clean.
Favorite Dish: I ordered the ribs and chicken. Don't expect any spicey-heat, but it's a tasty dish.