A new casserole recipe

Here`s the casserole I made tonight for supper.  Very quick, and pretty good, I think - and it served 10!

1 lb. lean hamburger
2 onions, chopped

Fry hamburger and onions until nearly brown.  Add

1 - 28 oz (540 mL) can of diced tomatoes with herbs and spices
2 cups brown rice (because Bram had started the rice earlier in the rice cooker, it was about half cooked; otherwise I would have needed to add some extra liquid)
1 tsp ground oregano
1 tsp thyme
1 tsp salt

Cook, covered, until rice is tender.  Add

3 cups frozen mixed vegetables.

Continue to heat until vegetables are heated through.