If you make fajitas for dinner the veggies can go into breakfast burritos the next morning. Just throw em into the pile of sausage along with the eggs and you're set. Cobbler left overs also make great breakfast.
Rice is a handy thing to have along. It works with all sorts of meals; stir fry, casseroles, accompaniment to Tex Mex meals, etc. etc. You can pre-cook it at home then just keep in gallon zip bags and re-heat as needed. It will last a long time if kept cold.
How about food? I think it's great and try to eat it several times a day!
Nothing in the world is more yielding and gentle than water. Yet it has no equal for conquering the resistant and tough. The flexible can overcome the unbending; the soft can overcome the hard. - Lao Tse
who doesn't like cold deep dish pizza from the DO with beer for breakfast?
Similar suggestion, but a slight different. I have brought a 25in manhole size pizza from our local joint I froze in ziploc bags. Heat it on the fire. Heat it on the grill. Or just eat cold for any meal of the day.
Like the others, Tex Mex rolled over into burritos, leftover rice/potato fried with sausage and of course leftover desserts.
Lasagna and enchilada pie cut into serving size cubes and cooked on the griddle on all sides is pretty great.
Leftover pizza or taco/burrito toppings make omelets.
Pulled pork works with just about everything.