It's a pity there are so few fast food restaurants that offer big, good tasting, healthy meals. Take burgers, for example. At home I use 93% lean meat with some seasoning, 2% cheese, light mayo, and a whole wheat bun and end up with a great burger that isn't massive amounts of calories.
1/2lb 93% lean meat = 340 calories
Salt, pepper, seasoning = 0 calories
Whole wheat bun = 120 calories
2% slice of provolone cheese = 50 calories
1 Tbsp light mayo = 45 calories
Ketchup, mustard, lettuce, tomato, onions = 25 calories
Whole burger = 580 calories
McDonald's Double Quarter Pounder = 740 calories
McDonald's Big Mac = 540 calories (only 3.2oz of beef!)
BK's Double Whopper with cheese = 990 calories
Side up my burger with some sweet potato fries sprinkled in a mix of chili powder with a pinch of brown sugar and you've got a huge meal for about 800 calories.
I'd buy that for $10 vs a $6 meal with less food and more calories.