Wednesday's gratin

We had ended up with another high veg situation in the fridge. This included:

• Courgettes – bargain in the shop the other day.
• Mushrooms – seemed like a good idea at the time but I haven't had a chance to use them yet and they were almost getting to that horrible slimy stage.
• Spinach – I have no recollection of acquiring this. On questioning Matt said he picked this up some time ago when I was away and he didn't think there was enough green stuff in the house. On further questioning he didn't have any particular plan for it.
• Broccoli – because broccoli is really good.

We were talking about what we might have for tea whilst in the changing rooms at the swimming pool. But in terms of other useful ingredients we were somewhat depleted. When I say other useful ingredients I mean cheese – the last 60g having gone into some scones at the weekend. We did have some branded cheese triangles but these have limited culinary application. I suggested that with a bit of cheese I could do anything. Fortunately Matt had to take a trip out to the sorting office so was able to tag on a trip to the shop.

In the meantime I got on with cutting up the courgettes. I still had no idea what I was going to cook. A pasta dish would have been the obvious choice but I didn't really fancy pasta.

I put the courgettes in a large oven proof dish (I actually chopped up more courgette than needed to line the bottom of the dish – the rest will keep in the fridge for another day).

And then in a moment of inspiration decided to cook some sort of gratin. This not only provided the potential to use a lot of the vegetables but also:

• sour cream – purchased as a bargain at the same time as the mushrooms and surely not going to last in a healthy manner much longer
• bread crumbs – finally a use for the vast quantity we have in the freezer following the purchase some months ago of some extremely cut price sliced bread.

The question mark remaining over the meal now was protein. It would be quite acceptable to have some fish fingers or veggie sausages on the side but I didn't really fancy that. I decided to integrate some butter beans into the gratin. We have lots of tins of beans and pulses in our cupboards, most commonly they go in casseroles or curries and I was rather excited about using them for something different.

I narrowly avoided making a significant omission. Fortunately Matt called to ask if we needed onions. We didn't, but this did remind me to chop an onion up and put that in. I used a red onion, which I have subsequently learnt contain more quercetin than other types of onion (although how scientific this fact is I'm not sure and what the benefit of quercetin is I'm not sure). And for good measure I added some cloves of garlic too.

By the time I had layered up all the veggies (and beans and sour cream, intermittently adorned with black pepper and herbs from the new herb grinder that Matt's mum had brought us back from her holiday), Matt returned with the cheese. I grated a generous amount and mixed it up with the bread crumbs (and some more black pepper) and then poured this over the top of everything else.

I had no idea what temperature to cook this at, so I went for the default of 180ºC. I had no idea how long it would take, but long enough at least that I could hang up pretty much our whole household's worth of underwear and socks. I decided it was done after about an hour when it the top was starting to look a bit crispy (I love crispy things) and then put the broccoli on (I decided that would be better as a side than in the main dish).

I was a bit worried that it would be a bit soggy (I had poured over just a little bit of hot stock before it went in the oven) so got bowls out just in case. But it held together remarkably well. It tasted great, although I'm not sure what the sour cream added, but then I don't know what it would have been like without the sour cream. Maybe it would even have benefited from more sour cream. I had cooked vastly more than was needed to feed the two of us – probably more like enough for 6. So we both had some for lunch today (leaving it in a lunch box in a hot car is actually a rather effective (and free) re-heating method) and there's some more for picnic tomorrow.