I keep bags of chopped onions, bell peppers, garlic, and green onions in my freezer. This cuts down on prep time and saves money bacause you can buy in bulk!
I plan out all of my meals for a week. Before I go to work, I see what's on the menu that night. That way if I go out to lunch, I can choose what I eat based on how may calories, proteins, fats, and carbs I'll have after accounting for dinner. It helps me stay on track.