Also don't just cook pastas or "easy" food. That's not challenging enough to keep it fun, and you'll get bored of it quickly.
Screw buying "bits" of meat... cutlets etc are very wasteful, and breast meat for example is the least versatile bit of chicken because it dries out.
Choose a cuisine you like (mexican, south indian, cantonese, whatever), and learn the fundamentals of it. Every tradition of cooking has certain basics, that once you understand, you can knock something wondeful together in a few mins prep time out of random ingredients.
For example, almost all Bangladeshi cooking is based on a garlic + turmeric + chilli + coriander + ginger + garam masala spice base fried in oil. Add veggies to the oil, then meat, and you have a tasty Bangladeshi dish.
Or Traditional British food (which is darn tasty, just nobody remembers how to cook it) is based on a carrot/onion/celery stock base. From that you can make soups, stews, casseroles or sauces.
And so on. The fun's in the learning. And once you get it licked, it's hella impressive to be able to improvise given random ingredients. Especially to women who are used to men being hopeless cooks.
Use the best, freshest ingredients you can buy... locally produced meat & veg (shouldn't be hard in Thailand). Invest in a really great chefs knife and some good pans, so you feel like the daddy when you're cooking.
I don't know why anyone would get food delivered - eating is the second most important thing you do for your wellbeing after breathing, so I'd rather handle it personally. Unless you have a personal chef, pre-prepared food is always sub-standard.
