I too us a foodsaver - I tend to do it most when I get a good deal on meat/poultry - you can seal in with marinade so it marinates as it thaw out, but I realize sometimes you need something meant for a pan. Glad used to make this ovenware - it was this bakeable plastic container with a lid - I think they will at least have it out now for the holidays. So, what I will do is prep a full recipe that would go in an 9x12 pan and then split into 2 - 8x8 - one in glass that I fully cook & eat and the other in the glad ovenware that I only prep & freeze as I don't trust my family with glass/pyrex in the freezer nor do I use aluminum in the freezer ;-) I do this with enchiladas.
I know that they say you can partially cook pasta then freeze but over the years, I've decided I prefer to do the prep and only cook upon defrosting if possible.
The thing about freezer cooking is a lot is for the "main" course and you still need to cook the sides. So, you can do well coming up with healthy sides that you can cook in under 15 minutes like couscous & quinoa as well as once a week cleaning out your produce bin by chopping up and freezing what's left so you always have frozen (fresh) veggies on hand for sides or to add to main course - it is the prep of these veggies that can take some time. I always have a batch of veggie fajitas this way.
I have found for me that I have become more diligent about "recycling" leftovers as opposed to freezing & my family seems to prefer it. Even the $5 Costco/Sams rotisserie chicken - main course one night, then it goes into an enchilada, quesidilla or wrap or salad or even chicken tortilla soup - which is super easy (add diced tomatoes w/ green chilis, can of corn, can of black beans, 1/3 cup rice, some chopped carrots & 5 cups chicken broth & cook for 20 mins)