We've been vegetarians nine months now. We haven't missed meat at all, and I've seen my cholesterol drop from 273 to 230 without medication.
We Americans do eat a lot of saturated fat, and saturated fat is found mostly (but not exclusively) in animal products: beef, pork, poultry (especially the skin), dairy products, etc.
And many folks feel that eating animals, itself, is something that we should avoid, if practicable.
Lunch today was low-fat ricotta tortellini. Last Friday, I had a Tex-Mex pinto bean soup. I think last Thursday's lunch was a curried egg salad sandwich. (Seasonings, like curry, help some of us get over the change in taste from lots of full-fat to just a little bit of low-fat mayonnaise, for example.) I believe it was last Wednesday that I last had nut butter and jam. (My preferred nut butter is almond, but I'm a guy, and we guys, older guys especially, need our almonds.) Tomorrow is probably going to be a ratatouille with some feta cheese in it. (The biggest challenge is avoiding going overboard with cheese.)
We make our own hummus. I was blown away how incredibly easy it is, and how much better it is, when you have totally control over what goes in it. Hummus and carrots, or hummus and snap peas, are a favorite snack food. In a pinch, I can make a lunch out of it.
For dinner ideas, see our Meal Plan Swap thread:
http://www.disboards.com/showthread.php?t=2190346
ETA ... I think disboards are just acting up for me today on Mozilla.
Thanks.