Need help with protein sources

I'm pretty new to the science of weight loss and have really been working to balance out my daily intake of protein, fats and carbs. I've begun doing isometrics to start to build muscle and would like to increase my protein to help support that. Currently my last couple day's average is broken out with 24% fat, 22% protein and 55% carbs.

First of all, I'm not all that sure that this isnt sufficient for building muscle, but a huge obstacle for me is getting in all my food throughout the day! I feel like I'm eating constantly and it is getting hard to keep up with it. For example; this morning I had 1.5 oz of left over sirloin from last nights dinner, 1 english muffin 1 light laughing cow cheese and a tangerine. I started eating at 9 and didnt finish my tangerine until almost noon! For lunch (at 1pm) I had a medium baked potato, 1/2 tbsp of whipped butter and another light laughing cow cheese (garlic and herb this time) with one medium granny smith apple. I'm full, but I'm still low on calories (and I'm still working on the apple as I type this. For snack I will probably have some low fat cottage cheese later and dinner I had planned some refried bean and chicken tostada's, even with the cheese those only come to 400 cals. I've already done about 35 min of aerobics today and about 15 minutes of a few isometric excercises (I'm just starting).

Sooo, I guess I would like to find some ways to add more lean protein so I dont push my fat intake any higher and a way to get some calorie dense food that isnt high in simple carbs and fat that will help me when I am struggling to get in all my calories. Part of my problem is I am at a total loss with protein sources, chicken, tuna, beef, cottage cheese, beans....what else is there that is low fat with lots of nutrients?

Am I just imagining that I should get my protein higher??? I'm only about 5 feet tall, and still have about 30lbs to loose. CC has listed my target calories at 1350. But I've pushed that a bit higher to between 1400 and 1600 depending on what I have done in the way of excercise. I dont want my body to shut down, and I just want to make sure I'm feeding it properly to build muscle while I'm still loosing weight....help!!

The first thing to understand is that it's very difficult (some say impossible) to build muscle when you're eating less than your body needs.  So what you're really doing, as you lose weight, is that you're toning the muscle you've got and not letting it waste.

The percentages you're working on are fine.   Fat should be 25- 30%, protein 15-25% and carbohydrates 50-65% in a balanced diet.  Just plan your day out better in advance so that you include more energy-dense, low-bulk foods.   If you make it up as you go along it's easy to make poor choices.   Vegetarian protein sources are often a good choice... tofu, lentils, beans, quorn.  And everyone's going to recommend egg-whites but whole eggs are a good source of protein, iron and a natural antioxidant 'lecithin'.  Nuts make a good high-cal, low bulk snack to top up.

Go with the higher calorie intake if you are particularly active.  Set your activity level to 'moderate' perhaps so that you don't end up undereating.  good luck

Thanks, I guess I didnt even thing about not being able to gain muscle while still in deficit, but it makes sense. Eating higher fat foods to increase really flies in the face of the normal thinking in weight loss (at least my normal thinking in weight loss :)) , but I'm trying all sorts of new things these days. Although with lentils and and beans that will help I think, I have forgotten lentils I think.

I am still working on planning my days, and I usually have it planned through afternoon snack, the problem was when I first started changing my eating habits I tried to save more calories for the end of the day where it seemed I needed them. Now, by the time I get to the end of the day I'm not as hungry ... amazing what happens when you actually eat breakfast and lunch.... I will work harder on increasing my mid morning and mid afternoon snack calories, that will help I think. It seems the more I have been eating lately, the better my weight loss efforts are rewarded.