Haloumi hash

A day of marking - comfort food is required!  Open fridge - red pepper and 3 mushrooms (and some carrots, and some cabbage, left them there for now).  However had some onions, new potatoes and frozen peas, and some haloumi in the back of the fridge, so I came up with this - and it was really tasty.

1 tbsp olive oil
1 onion, sliced into half moons
1 red pepper
about 10 new potatoes
3 mushrooms
water
Haloumi (half a pack, diced)
Frozen peas
seasoning

1.  Sautee onion in olive oil.
2.  After a couple of minutes add in other diced veg including diced potatoes, sizzle until slightly "caught", then add about a pint of water.  Stir, scrape up bit from the bottom of the pan.  Cover and allow to simmer for 10 ish minutes.  Check on it - you want the veg to be cooked, and most of the water absorbed, but nothing burnt.
3.  When veg is about done, and most of the water absorbed - chuck in about another 1 tbsp oil, so that you get a bit of frying, and crisping up of the edges going on.
4.  After a couple of minutes add diced haloumi and frozen peas - stir/toss, cover - after 2 minutes, taste, season. turn off heat and let cook through in residual heat

Scoff. You could "big up" the flavours by using stock instead of water - adding garlic/chili/curry etc - but the haloumi adds savouriness and the veg are all fresh, so I don't think it needs much.