Small meals/snacks that I use (besides what you already mentioned)
Greek yogurt (I like Chobani 0% fat...about 140cal/serving)
Mashed Sweet Potatoes (I will bake a whole batch and graze off the leftovers either for side dishes for snacks. I like to add a teaspoon or so of pureed Chipotle peppers with adobo sauce).
I usually do 3 meals of around 400-500 cal each with 3 100-200 cal snacks. Has worked well for me.
Male 45, 5'6"
To date - 32.6 lbs down
Start: 20 Oct 2011: 210.2lb
, body fat =35.3%
Original Goal: 20% body fat - achieved 3/1/12
Last weigh-in: 3-May-2012: 177.6
Last body fat measurement: Oct 15,2012: 14.1%
Goal: Maintain < 20% body fat and < 180lb
Days Maintained : 427