It’s true that eating out is as cheap if not cheaper than cooking at home here in Thailand.
Though going out all the time actually takes time and also gives you less control over what you are eating. So I generally prefer eating in my room or apartment, at least when I am working a lot, as I am right now.
Here’s my typical food that I cook in my current hotel room. I cook some rice in my rice cooker, I have some meat or other ready to eat addition to the rice in my fridge. I also see to it that I have some fresh vegetables and lime and things in stash to make the whole thing a bit more interesting. The food feels very natural and fresh, and it’s quite frankly very delicious.