Hey, congrats on the GREAT loss!!!! Way to go!!!
I wouldn't be overly concerned about losing 6 lbs in such a short time though. It most likely won't happen again. First week losses are usually much higher then the remaining weeks you've got ahead of you. Lowering your calories and changing up your diet usually results in water loss that first week. If it were to happen weeks and weeks in a row, that would be another story, but again, that is most unlikely. As long as you are feeling full and satisfied, I wouldn't change a thing just yet.
Another thing. Those 1 - 2 lb loss averages that are recommended are not necessarily meant for those who have a larger amount of weight to lose.
As far as the recipe goes, I don't think you're overthinking at all. You're being aware and consientious, which is what will help get you to goal and then keep you there. One really has to be on top of things in order to maintain a healthy weight. I commend you! So yes, definitely count ALL the calories. Because all the calories matter. Oil has 120 calories per tablespoon, so you'd definitely want to add that in. calorie-count.com has a great feature called "recipe analyzer". You can plug in all the ingredients, the number of servings and they will figure it all out for you.
Don't forget to get in some exerice as well as counting your calories. You want to lose fat, not muscle and give yourself the best chance for success, while toning up your body.
I wish you much continued success!!!