Find out how many calories you need to maintain your current weight. Mayo Clinic has a calculator [http://www.mayoclinic.com/health/calorie-calculator/NU00598] that can help you approximate this information. In order to lose one pound per week, consume 500 fewer calories. To lose two pounds per week, consume 1000 fewer calories. However, assuming you are male, then you should be consuming no fewer than 1800 calories per day. Additionally, it is considered to be unsafe and ineffective to lose more than two pounds per week, or eight pounds per month.
It is important to think in terms of lifestyle changes, not temporary dieting efforts. In other words, if there are certain foods you really enjoy, continue to enjoy them, however, do so in moderation (i.e. they should, generally speaking, fit into your calorie budget). Do what you enjoy doing and use food as a means to keep you going through the day. Long-term consistency will yield long-term results.
If you would like to eat more and continue to lose wight, then you can always exercise. However, be careful that you do not overestimate the amount of calories you are burning with your routine. Walking is a great low-impact exercise, but running burns more calories in a shorter period of time as it is less efficient. Just make sure that you pick something that you actually enjoy doing. Remember, it should be something that you can see yourself doing for years to come. If exercising is not really your thing, then that is fine (although, for the sake of your heart, you might at least want to consider the occasional walk or swim), so long as the numbers (i.e. calories consumed) are consistent and within the range of your goal.
Avoid attaching food to any specific time of day. Eat when you are hungry and stop when you start to feel full. Also keep an eye on serving sizes, which are very often smaller than one might like for them to be (ex: a serving of ice cream is only 1/2 cup). Make sure that each of your meals balances fat, protein, fiber, etc. to keep you full in between meals.
Good luck!