Enjoy your dinner out on last week. I have always average out on spending money over the year so long as I have some money left at the end of that week or pay period. I also keep a float so that I have some money for these kinds of nights out. I have to budget in Christmas dinner this year at Five Star Hotel as my DIL family likes to dine out $189 for one meal. You only live once.
I would not go if it was every year that they did this. I know they can't afford it!

Here is that salad recipe that mention a few posts ago.

Traditional Greek Salad
(Tomato and Feta Salad)

Serves 6
Prep time 15 minutes

INGREDIENTS
2 Lebanese cucumbers
2 Roma tomatoes, roughly chopped
1 red onion, thinly sliced
100g roughly diced Bulgarian style feta or firm feta
1/2 cup pitted Katamata olives
1/4 cup olive oil
2 tbsp lemon juice and/or Balsamic vinegar (50%-50%)

METHOD
Halve each cucumber lengthways and then slice thickly.
Place in a large bowl with remaining ingredients and toss well to combine.
Season to taste
Serve with Chicken Souvlakia or Keftethes (Greek Rissoles)