For my patients who I want to partner with to lose weight, I usually recommend, maximize vegetables, lean meats, water, water, water.
Minimize simple carbohydrates, such as, potatoes, pastas, rices and breads. Avoid fast food and try to minimize or avoid soda altogether.
Plan your meals ahead of time. To work, bring with you a bag of carrots or cauliflower, apples to dip in peanut butter, yogurts, cheeses, nuts.
Make sure that you have healthy options.