Just echoing the people who say not to eat imitation products. I'm not saying nobody should ever eat a veggie burger, but in my experience the only people switching from, say, burgers to veggie burgers all at once really works for are those who are willing to go vegan instantly for ethnical reasons, taste be damned. If you just eat imitation meat products all the time then unsurprisingly it'll probably taste worse than the real thing, in the same way that eating imitation vegetables would taste worse than the real thing, partly just because it tastes a bit off (even if in some nonexistent "objective sense" it doesn't actually taste worse).

I personally recommend:

1. Try taking some foods that you sprinkle meat onto as an extra, but which aren't inherently meat-based, and removing the meat. One great example of this is trying to eat vegetarian pizza. That being said, you have to be a bit careful. I'm sure I'll start some best-vegetable holy wars by saying anything but I find a lot of the default vegetables people put on pizzas etc are a bit tainted by the fact that they're intended to be eaten for meat in that they're just there for texture and not taste at all, so getting a green pepper pizza for example would be boring as hell. I recommend some subset of mushrooms (ideally portobellos or some other non-white button/cremini variety), red peppers (ideally roasted), sundried tomatoes, onions, anything interesting that's pickled/preserved that you might be interested in (eggplants in oil, artichoke hearts, banana peppers etc... beware that some of these can be a bit strong-tasting and not for everyone). YMMV though since everyone likes different things on their pizza.
2. If you're eating something without meat, remember the roles that meat used to play and that you still should fill them--not by using something that pretends to be meat, but by things that contribute the same things. For example, meat often plays an important role in food's texture: mushrooms often make a very good replacement for this (especially larger varieties like king oyster or portobello depending on the context).
   
3. Olive oil and balsamic vinegar can make anything taste good! Olive oil is also an important source of calories since you won't get many calories from vegetables, so you need to rely on staples (bread or other wheat-based products, oil, beans, rice etc) to actually get your calories. The veggies are for taste and nutrients.

If you don't want to try making something yourself, see if there are any vegetarian or vegan restaurants in town and try something there. Don't just order a vegetarian meal at a normal restaurant: most people with meat-based diets don't have a clue how to make vegetarian food and think that a meat-based meal without the meat (maybe with tofu in its place) makes a good vegetarian/vegan dish.

One thing that you may also notice if you try more vegetarian food is that you'll also start appreciating parts of the dish that you didn't notice before. For example, in a lot of "traditional" meat-based cuisine bread serves as a vector to transport food to your mouth and not much else (in pizza, sandwiches etc) and maybe if you're lucky adds some texture (this has gotten a lot better now that grocery stores are carrying non-crap bread). However, it can also play a role in taste as well: try out sourdough (traditionally baked bread with no or little added yeast) some time! These are all little things that you don't really have the chance to appreciate when everything is slathered in meat grease.