I totally understand. It’s tough to pack food that tastes good and keeps you on the go. For a lot of people, the simplest, most economical options get boring.
One solution is to pack freeze-dried meals. I'd recommend Mountain House’s Lasagna with Meat Sauce ($6.50 for two servings) or AlpineAire's Western Tamale Pie with Beef ($8 for two servings). Freeze-dried meals are simple—just boil some water, pour it in, stir, and wait five minutes—and I don’t buy the argument that they're expensive. Throw in some dried soup and crackers and you can feed two people for under $10 each, easily.
And make sure to pack a spice kit, either from the bulk area at your local food co-op or the spice aisle at the grocery store. Look for the following: onion powder, garlic powder, cumin, chili powder, oregano, rosemary, and thyme. Try a couple different combinations— it'll go a long way in taking the “blah” out of an otherwise basic meal.