Will you look at my diary?

I agree you seem to be eating too little. Try to substitute processed foods with whole foods. Any little additive makes a difference. Instead of presliced lunch meat (which has high salt, etc.) try chicken breast. Instead of white bread slices (no real nutritional value) try to make a wrap with romaine lettuce or a heavy grain bread (I personally don't eat bread at all). Instead of white rice, try brown rice. Please eat breakfast with your coffee. Try a 3 egg omlette (chop up onion, green peppers, left over chicken, etc) or yogurt (I liked greek yogurt like Fage). It's better to add your own fruit then buy them with fruit. Double or triple your veggie intake to help fill your plate. I use a lot of frozen Steamfresh veggies (steam in a bag in a microwave). I'll eat half a bag for dinner a few times a week for dinner with my chicken, tilipia, or salmon. I live for salads, so try a dark green salad (heavy with spinach or romane) and add a couple ounces of tuna with vinagarette dressings. One of my favorite salads is: 50/50 mix spinach ready mix (Dole or Fresh Express brand), 5 oz or chicken breast (seasoned with pepper and salt-free McCormics), 1 oz. whole almonds (natural, no salt), and a apple cut up into pieces. I use Kraft Tomato Basil and Ken's Raspberry vinagarette fairly frequently. Last but not least, make sure you drink a whole lot of water. I drink water all day out of a waterbottle with a straw in it. It has side measurements so I can ensure I'm getting my whole 80oz in. Good luck!

I wasnt clear on your workout. If its only interval training thats a good start but you need to get in more cardio if you really want this to work for you and eat breakfast and veggies. You say you do 40 mins of cardio I would shoot for an hour because when you stop at 40 mins you are missing that last few minute burn. Also if possible get a heart rate monitor then you will know exactly how many calories you burn and can adjust your eating. That should do the trick for you. Ive been there Im sure its hard to get your workouts in with the kids but many gyms in the area have daycare available (my kids made great friends at the gym daycare) like Transformations. If you cant do the gym get some videos to do while the baby is sleeping.

I wasnt clear on your workout. If its only interval training thats a good start but you need to get in more cardio if you really want this to work for you and eat breakfast and veggies. You say you do 40 mins of cardio I would shoot for an hour because when you stop at 40 mins you are missing that last few minute burn. Also if possible get a heart rate monitor then you will know exactly how many calories you burn and can adjust your eating. That should do the trick for you. Ive been there Im sure its hard to get your workouts in with the kids but many gyms in the area have daycare available (my kids made great friends at the gym daycare) like Transformations. If you cant do the gym get some videos to do while the baby is sleeping.

http://www.metaboliceffect.com/topic/38-nutrition-lifestyle.aspx

Less cardio, more weights. Fat loss > weight loss. Also, if you increase exercise, you have to increase calories otherwise, you increase the chances of your body catabolizing lean body mass.

More lean protein (80-100g/day at least)

More water

Less Sodium (set up MFP to track)

Clean it up (less pre processed, synthetic or sugar-free)

I personally had to cut out items I am sensitive to like sugar alcohols/artificial sweeteners, dairy and just about all my wheat.

More weight training/heavier weights. Think of the times you are hauling a kid on one hip and a diaper bag on your shoulder. That is way more than 5 lbs. Challenge yourself safely.

Believe it or not, I think you may be eating too little.

If you have a few moments, please read this piece; it's one of the most helpful posts we have and it might get you re-calibrated into a healthier, weight-lossier set of habits.

http://www.myfitnesspal.com/topics/show/654536-in-place-of-a-road-map-2-0-revised-7-2-12

Things that I picked out-
You often skip breakfast. Breakfast really does wonders for kick-starting your metabolism.
A lot of your foods are highly-processed, high carb, and high-sodium. I recommend getting a little more clean food in there.
Make sure you give your body a rest day. I used to think this was stupid, because the more you work out, the more you should lose... maybe in theory, but our bodies often don't respond well to that.
Something I found very helpful was calorie cycling. I used this site: http://www.freedieting.com/tools/calorie_calculator.htm and put in my weight, height, how often I exercised, and just ate the amount it told me. It really helped me break through a plateau that I hit.

I hope that was helpful- above all, make good choices, and make changes you are willing to stick with in order to keep the weight from coming back once you start losing it!

Your metabolism never stops. And breakfast doesn't do anything for it. Meal frequency and meal timing are completely irrelevant when it comes to weight loss.