I generally buy frozen Pizza Margherita in store for making a quick lunch if I am running out of time. However, I don't really like the taste of the baked Pizza because it is just Tomato and Cheese. I am a vegetarian and I would like to add toppings but when? Should I directly add veggies on frozen pizza and put it in the oven or let the frozen pizza bake for a few minutes and then add the toppings ? Suggestions are most welcome.
I do this quite frequently, as well as making my own pizzas. Most pizzas will cook in approximately 20 minutes, so it is absolutely fine to put any of your favourite toppings on right from the start of cooking. It may be beneficial for some foods which are more likely to char (such as broccoli or thinly sliced ham) to be either dipped in water first or covered with a little cheese to insulate them against the heat and stop them from drying out.
One of the best toppings for a pizza is egg, just don't put it on at the start. Let the pizza cook for about 12 minutes then crack the egg on top and place back in for another 6-8 minutes. This should leave the egg runny, but if you don't want it like this then just leave for a little longer.
Onions and peppers are good toppings as well and they can go on right from the start.
The method I've used to add toppings to frozen pizza is- use frozen toppings. For example, green peppers are in my opinion a great addition to pizza. I usually keep frozen green peppers and other pizza-worthy vegetables for use with many things, and frozen pizza is one of them. This way, I simply add the toppings to the pizza before baking and viola! Easy, simple, and much more tasty frozen pizzas.
Roasted veggies yesterday. I'll reheat them before topping the frozen pizza, then use the regular cooking time.
For vegetarian options, it depends on what you want to add. Pickled jalapeño slices go right on top before you bake it, and they add just the right amount of zing to a bland pizza (cut them in half or even quarters if you're timid). Spinach or kale can be washed, chopped, and added right on top, too, before the bake. Unless you slice green peppers or onions quite thin, microwave them for 45 sec. before you put them on. (Red peppers cook faster.) Fresh mushrooms sound fantastic, but raw ones will make a frozen pizza soggy, so do stir-fry them first for 1-2 min. in oil or butter and then add them before the bake. Fresh tomatoes should go on after the bake, unless they are anemic winter or strip-mined tomatoes, in which case, you should dice them, press the extra juice out, and scatter them before the bake in a wide circe, avoiding the middle. Olives can go on either before or after. As my dad says, dress up frozen pizza? I dress it up in a tuxedo!