My typical day:
Breakfast:
1/2 cup oatmeal with 1/3 cup egg whites cooked into the oatmeal with 1/8 cup blueberries, 2 pecan halves and 1 teaspoon raw sugar, substitute breakfast, Greek yogurt with 1/8 cup granola ( I love crunch) or small tortilla with egg whites scrabbled with some peppers, onions and tablespoon of cheese. ( I have an addiction for Starbucks SF Nonfat Carmel Machatta on the days I indulge I have my coffee and a protein bar)
Snack mid morning: small protein bar or shake depending on how breakfast went or how busy my afternoon is going to be
Lunch: 2-3 ozs of lean protein, turkey, chicken, pork. or fish. (early days I ate a lot of thinly sliced lunch meat, other meats were dry and got stuck. 1/2 cup green veggies, or a very small salad with oil and vinegar. If I am going to eat a starch this would be the meal I would do it.
Mid afternoon snack, small apple or banana with 1 tablespoon of peanut butter or a protein bar. Depends on how portable I need my snack to be.
Dinner: Again lean meet around 3 ozs and a veggie.
Snack: 1/8 to 1/4 cup of almonds or sometimes 2 cups of popcorn.
I have ate this way for over two years, I have always done snacks, I was never able to do just 3 meals. It took me months to work up to a 1000 calories a day and I try very hard to keep my calories around 1200.
I am at goal and I still eat this way but now I try to hit 1400 to 1600 calories a day and yes I still weigh and measure my food and I still eat off a small plate with a big fork. I do not drink with meals.
I do not deprive myself of anything I want, if I want something that is high calorie and not as nutritious, I eat it and adjust accordingly. I say that now but I am at goal, when I was trying to lose, I rarely indulged. I allowed my self one splurge meal a week on a Thursday.
I find weekends, especially Sundays difficult and exercise was the key to continued successful weigh loss for me.
Good luck and hope this helps.