Spray a skillet with cooking spray and sauté spinach until wilted, about two to three minutes. Drain and roughly chop. Transfer to a bowl and add cheeses and seasonings. Mix well.

Spoon a thin line of filling onto a spring roll wrapper and roll tightly according to package rolling instructions. Repeat until all the wrappers are filled.

Heat 1/4 cup oil in a large pan and fry rolls, seam side down, until golden, about two minutes per side. Remove from pan and drain on paper towels.