Make your own frozen dinners by pre-planning and creating the combination of things you want.

Plan for leftovers that you can take for lunch through the week (like, cook a large roast or turkey or two of something instead of one - takes just as much time and electricity, and you have a meal already planned for you).

Don't make a habit of going to restaurants, but make a habit of being your own chef.

Like others have said - buy in bulk.

Buy prepackaged lettuce/greens combinations for interesting salads.

Buy prepared broccoli or cauliflower if you'd rather not prepare it yourself.

Frozen fresh veggies (cauliflower, green beans, broccoli) can be just as good a choice, and are already prepared for your use.

If you like fresh berries, and are not on OWL yet, freeze them in appropriate size portions - next winter you'll be happy with their availability.

Don't bother wasting your budget on all the prepackaged low carb choices out there - they are not necessary for this meal plan. Whole foods are a better choice nutritionally and give better satisfaction when eaten.