I know what you mean about spicy food...I love thai food too but I cannot live without Indian food. I found these great Indian entree's by "Amy's". All her stuff is organic, healthy blah blah.. but it tastes great. I buy Amy's macaroni and cheese occasionally too, but I love here Indian entrees. I can cook my own mac and cheese and my own indian eats, but this way I have it all portioned out for me, calorie counted, fiber, fat, sugar, all the stats in front of me so its much easier to not get out of control with it!
I haven't seen anything Thai in Amy's stuff, but I have seen enchilada's and burritos by her, which I haven't tried. OKay, so enchilada's and burritos not Cuban, but I'm trying here...

ANyway I can find Amy's in most grocery store frozen foods section and its worthy trying out... so far I've liked everything I've bought from her... her indian stuff...her mac and cheese...her garden veg lasagna... ALL GREAT!
Good luck on your hunt for healthy ethnic eats!! and let me know if you come up with any others...