Well, I'm not vegetarian, but I have days where I happen to not eat meat. Today happened to be one:
Late Breakfast
2 waffles (Van's, which are vegan I think, they're egg-free and dairy-free, and wheat-free, gluten-free... hrm, wonder what they're made out of

)
2T lite pancake syrup, and a dab of Promise spread
2 Morningstar breakfast patties
Lunch
PB&J sandwich, made with no-sugar peanut butter I made at the store, all-fruit spread, and Ezekiel whole wheat bread
Watermelon chunks
Dinner
Amy's Organic Thai stir fry (w/ tofu, jasmine rice, veggies, and, uh, Thai stuff)
Mixed green salads with a few different veggie types and a homemade balsamic vinegarette dressing
Afternoon munchies
McD's fruit and yogurt parfait
Some baby carrots with a bit of fat free ranch dressing
Munchie snack
Very incredibly street strawberries (8 oz)
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Thumbing back I can find another day that was all vegetarian:
Breakfast (7 points)
Breakfast sandwich (English muffin, 1/4 cup egg beaters, 2% Kraft cheese slice, dab of light margarine, and a Morningstar breakfast patty)
Peach
Midmorning snack (2 points)
Pria bar (I love the peanut butter crunch!)
Lunch
Morningstar black bean burger on an Ezekiel whole grain bun, plain except for ketchup
About 4 oz of these really awesome frozen potatoes with olive oil and parmesan that I can't remember the name of
Snack
Soy chips (I individually bag them so I don't pig out!)
Apple slices
Dinner
Homemade black bean burrito
Salad with just romaine lettuce and grape tomatoes, with fat free ranch dressing
Late night munchies
No Pudge! cookie crumble bar
Nothing too exciting. For general suggestions, though, I love eating Indian or Thai dishes when I'm eating vegetarian. Despite being vegetarian for a few years, I never did figure out how to cook with tofu, so I usually go out or get Amy's organic frozen foods (which is about as expensive as going out). I also love some of the Morningstar products (especially their breakfast patties and black bean burgers). And there's a lowfat perogie I love. One of my staples was what I call 'bean thing'. Invented in college, it's mostly just sauteeing some bell pepper and onion, adding about a jar of salsa and a can of black beans, then some Mexican seasoning I get, and voila. It goes in burritos, on baked potatoes, on English muffins for mini pizzas, over brown rice, and probably other more creative ways I'm forgetting.
(For reference on the menus, I use the WW point system and those are probably around 30ish points, maybe a point or two higher or lower. Which is probably around 1500-1700ish calories, if I had to guess.)