The mini meals are snacks. The Insanity Nutrition Guide describes them as food blocks and lays them out for you if you're willing to follow them. I find it helpful figuring out what 100 cals, 200 cals and 300 cals look like and then adjusting and fitting them in the day as needed. I don't always do the 5-6 meals a day--it's just too much preoccupation with eating for me so for the most part I stick with 3 meals: breakfast, lunch, dinner and a recovery meal post workout. I don't bother with BB's recovery formula or whatever else they're selling. My recovery meal looks like: one cup of skim milk, half scoop of whey protein, a banana and 1/2 cup oatmeal (left over from breakfast). Do what works for you here.

I can understand not wanting to cook a bunch of different meals for you and for the rest of your family. You could sneak in healthier recipes and maybe they won't notice . I don't cook much and someone else will have to point you in the right direction there. If cooking healthier versions aren't doable and you're not adverse to eating vegetables, take a smaller dinner plate (6-7") fill half of it with steamed vegetables (or salad and go easy on the dressing) and then fill one quarter with protein and the other quarter with carbs. If I had something not so good like a cookie or whatever earlier in the day, I make up for it by skipping carbs at dinner. I don't know what your food log looks like, but I'm a fan of keeping things simple and maybe this will help you some. I usually do this for lunch and dinner.

You're very close to your goal weight. If I were you, I'd ditch the scale and make friends with a measuring tape and a camera instead. Gauge your success in terms of measurements and how you look in progress photos not some number on the scale that can fluctuate day to day depending on DOMS, hormones etc.

Hope this helps and good luck.