In a medium bowl, use a whisk to mix together ingredients for Ranch sauce. Place in refrigerator to set.
Slice onion and green bellpepper into long, thin strips. Set aside.
Grate Provolone cheese. Set aside.
Add one Tbsp olive oil to sautee pan on medium heat. Add bell pepper and onion. Sautee just until tender.
Add beef and seasonings. Stir well. Continue to sautee until beef is done. Remove from heat.
Using a large spoon, spoon a portion of the Ranch sauce onto the prebaked crust. Use the back of the spoon to spread the sauce evenly to the edges. (How much sauce you use is up to how saucy you like your pizza.)
Pile on all of the beef, onion and peppers. Distribute evenly out to the edge of the crust.
Sprinkle cheese on top until completely covered.
Bake at 350 degrees Fahrenheit for 10-15 minutes, or until the cheese is melted and just begins to brown.
Thinly sliced ribeye can be purchased at your meat counter. Just let your butcher know that your making Philly Cheesesteaks and will need it sliced paper thin. There are also several Cheesesteak beef options in your freezer section.Garnish with chives and red pepper flakes.