I have eaten here three times and have never been disappointed. Empanadas (6 soles/$2) are big, filling and tasty.
The mushroom quiche is flavorful. I also tried the Lasagna (18 soles/$6) and it's a huge portion, enough for two people. The cupcakes are also decadent.
If you're on Ave. El Sol, give this place a try. Ambience is very cozy.