Trangia 27 is a very reliable, stable, capable stove for real cooking. You can buy an optional gas burner to replace the alcohol burner.
I used one for 8 weeks cooking proper evening meals. The simmer ring takes some getting used to, I handled mine with some Leatherman pliers but once you get used to it, you can get a good low, even heat.
I found the whole setup pretty quick and convenient so that I would rustle up roadside lunches of noodles. When I get to camp, I fire up the stove (prefilled and carried with a small amount of fuel) then pitch my tent, then drink a mug of tea.

My most elaborate meal was a 3 course steak dinner. I cooked fish by poaching in water. I never cooked chicken but you could fry it in the base of a pot then add liquid stock/beer/wine to make a stew.

The disadvantages of Trangia are the alleged slow boil time, weight and low energy density of the fuel. None of these were a deal-breaker for me. I found I could leave the kettle to boil unattended and plastic fuel bottles weigh less than metal canisters or bottles.
The only mishap I experienced was with a new batch of fuel from a German hardware shop, it must have been leftover rocket fuel with a much higher purity than normal. The liquid in the burner boiled and flared but fortunately it was outside and no tent involved. Test your fuel before cooking anywhere near a tent. Concentrated fuel can be tamed by adding a few drops of water to the burner contents.
Once I extinguished the flame with the carrying lid. The rubber ring came off and I light it up again, destroying the ring. You cant carry fuel in the burner without the ring but you can get these as spares.


I met a vegan who used a vacuum flask to pre-soak lentils in hot water, you should think about carrying a flask as well.