I have found prepping small salads to be the easiest method while on the go. I'm on the road traveling for sales during the week, so I usually load up a Six Pack bag with 3 meals. When cutting my meals look like this:
-handful of spinach
-handful of brocolli slaw
-4-6oz of chicken or ground turkey
-low calorie dressing (usually lite italian or something <25 cals per serving)
-brown/white rice, almonds, olive oil to meet macro requirements for the day
I keep my meals small on the go since I don't have a lot of time, and I'm eating them while driving or between client meetings. Small meals like these keep me full and are low calorie, which then allows me to enjoy the rest of my calories at breakfast and dinner when I have more time to eat, relax, and enjoy the food. Hope this helps!