Personally,I would be trying to change around eating times and implement intermittent fasting,if you can make it work for you.
I like breakfast some days and other days not.
I would eat around 5-6pm and then leave food for at least 14-16 hours after that.
I then have a meal around 9-10am.
Fat helps me to stay full longer and I enjoy working out fasted.
That's what works best for me.

With such a physically demanding job, I don't really think you can eat breakfast later. When I was trying to exercise in the morning my fasting was messed right up. Not acceptable... to me. My job has me stuck at a desk so I eat at lunch at noon (no choice there) and I eat as soon after work as possible, usually by 6pm. I often have a nightsnack that follows very closely after supper.

I love weekends because I can obey body signals instead of the clock. I sometimes only eat one or two meals very close together. I'm rarely interested in eating before 2 pm.

I love intermittent fasting but I do NOT think it's appropriate for someone with a very physical job. It might also be hard to eat enough if you are rushed trying to eat a meal at break instead of lunch. Of course, you could just try it and see what happens since no harm will be done as long as you give it up if it doesn't work.

My meals are not set, in fact you could say they were quite erratic.. I usually eat my first meal around 2pm, this is my biggest meal, but if I'm hungry in the am I'll have a protein shake. Then I'll have something to eat later on in the day, there is no set time. one day last week i only ate 800 calories because I wasn't that hungry.. the day after I felt like eating more so i did.. still lost 6lbs this week.

Primalkiwi: you didn't mention your very physically demanding job here…. When considering meal timing, I think it is an important factor to consider and the advice of those of us who have far more sedentary jobs may not fit your situation at all.

Since going Paleo, exercising much more often and eating food that keep me feeling full much more longer, I find I'm not eating as frequently. As many of you, I find myself eating twice a day. I'd like to do more research on intermittent fasting and incorporate it into my week somehow.

Something I'm concerned with is that I may not be getting enough protein. For those who eat infrequently, how do you ensure you're getting enough of your protein?

Here is a quote from marks daily apple about protein:
Protein takes priority. If there is ample glycogen (stored glucose) and the body is getting the rest of its energy efficiently from fats, protein will always go first towards repair or building cells or enzymes. In that context, it hardly seems fair to assign it a “burn rate” of 4 calories per gram. It’s like saying the 2×4 studs that support the walls of your house can burn nicely if you run out of firewood. They will, but I prefer to burn other fuel first. At a minimum you need .5 grams of protein per pound of lean mass/per day on average to maintain your “structure”. If you are moderately active you need .7 or .8, and if you are an active athlete you need as much as 1 gram of protein per pound of lean mass. That’s at a minimum, but it’s on a daily average. So a 155 lb moderately active woman who has 25% body fat (and thus) has 116 lb of lean body mass needs 93 grams of protein on average per day (116 x .8). If she gets 60 or 80 some days and 110 on others, she’ll still be in a healthy average range. And even if she exceeds the 110, it’s no problem if she’s eating low carb because the excess protein will convert to glucose, which will reduce her effective carbohydrate needs (see below). At 4 calories per gram, that’s between 320 and 440 calories per day in protein. It’s not that much.

Read more: http://www.marksdailyapple.com/definitive-guide-to-the-primal-eating-plan/#ixzz2qZPDspcA

Since going Paleo, exercising much more often and eating food that keep me feeling full much more longer, I find I'm not eating as frequently. As many of you, I find myself eating twice a day. I'd like to do more research on intermittent fasting and incorporate it into my week somehow.

Something I'm concerned with is that I may not be getting enough protein. For those who eat infrequently, how do you ensure you're getting enough of your protein?

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Just plainly eat more protein at meals. One size doesn't fit all, because there is a wide range of personal preference when it comes to protein not to mention budget. Personally I would love to eat giant filet mignon every dinner, but that is not an option due to the cost and the food preference of my family members.

there is chicken, duck, turkey, salmon, cod or any other fish , shrimp , steak, ground beef , pork , organs ,eggs, dairy (if you primal) or even protein powder.

I find a protein price comparison on he web. Very interesting, because the writer actually calculated the price of 1 lb dietary protein 454 g protein on your MFP column and compared that from different food sources. It is based on US prices, which may differ significantly from your local prices, but nevertheless it is an interesting comparison :
http://mikesmixrecoverydrink.com/a-protein-cost-comparison/

Since the legumes are out, practically eggs are the cheapest option, followed by chicken and unflavoured whey protein powder.

Interesting to see everyone's thoughts on this. Laurie (akimajuktuq) - no I didn't mention my physical job as I only have 4 more weeks left before I start on the 3.5 months of the year where I work indoors and I'm pretty much sedentary and this is when I plan to try and implement new eating patterns. For the rest of the year - over winter I've only done 2 hours physical work by 10am so would be fine (can't stand BP coffee btw) but over summer I've completed 4 hours very physical work by 10am so it wouldn't work then. If you remember I did try IF briefly but found 9:30-10am was my maximum time before I physically needed food for energy after about 2-3 hours physical work. I only plan on staying in this current job for another 6-8 months so staying open minded on how I might implement changes :-)

OK, I getcha now. When I was doing a 20 minute body weight training routine in the mornings it destroyed my ability to IF on those days. I could make it to 10 am and then I felt sick. So with 2 hours of intense activity, I'm not sure if waiting to 10am would work. But no harm in trying. Of course how long one can IF before needing to eat is impacted by how early you get up and what you are doing. I am up between 6 and 7am. I walk a dog a bit and walk to work (15 mins total) and have "standing breaks" now instead of scheduled workouts, so I usually have no issue making it to noon. If I were up at 5am and actually exerted myself, then no way I'd make it to noon. I value my IF so much that I tossed the scheduled workouts in exchange for more movement during the entire day. As spring approaches, I will have more expectations of myself when it comes to activity.

I have coffee and nuts first thing in the am, then brunch at 10am, lunch at 2pm, dinner at 6pm. I thought this was already so hard. Can't imagine eating only twice a day. I wouldn't be able to eat enough calories that way.