Zubie's Pizza, 1714 Placentia Ave., Costa Mesa. Open 11:30 a.m. to 10 p.m. Monday through Saturday and Sunday 11:30 a.m. to 9 p.m. (No phone.) The pizzas here come in one size only--large--and one price only--$6.50 plus tax. That's whether you order plain, the works or any range of toppings in between. Expect picnic tables, a varied crowd and lots of noise, but you want decorum or you want good, cheap pizza?