First thing, I rearrange my toppings on the frozen pizza. They're never distributed properly so they need a bit of help.
Then sprinkle your oregano, and miscellaneous herb blend onto the pizza.

I always use a pan! That's a big downfall of cheap frozen pizzas. Concrete like crust. A little bit of a softer crust really adds to the goodness of a pizza. So use a pan.

Follow the package directions on oven temp. Put your pizza on the top rack of the oven. I like 3 or 4 meat pizzas so I like to get a head start on cooking the toppings so I want it close to the heat at the beginning.
Cook on top rack for approx. 10 minutes.

Remove from oven. Add your shredded cheese evenly over the top. Then add your garlic powder and red pepper flakes depending on your taste. I like spice and flavor.
Return to oven on middle rack and cook for remainder of package time adding 5 minutes.

Remove, slice and enjoy! As always, experiment, tinker, add and play. You can even add more toppings if you have them handy. A little effort and a $4 frozen pizza can be a delicious noteworthy experience!