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Budget
The cheapest fast food could cost as little 0.50-1.00lv to 2-3lv and can be found along the main street. There are plenty of such places offering pizza, traditional food, and kebabs.
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Midrange
There are some low-end restaurants that will be fairly affordable pay attention to the menu and think about 10-15lv for a full meal salad, main course, dessert, drink(s).
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Top end
Paying more will probably get you a slightly better food than the options above but most of the cost will definitely go towards the overall experience. The priciest places are located in the old town, on top of the hill. Expect to pay a bit more say 20-30lv and above. There are also a few restaurants outside the center.