Preheat you oven to 350 and grease a 9x9 glass dish with Pam or Crisco spray (Thats what I use) set aside.
I cook my rice(use package directions) on the stove in a saucepan till almost done but not completely (will finish cooking in the oven)and save 1/4 cup of the rice water or more if needed.
Mix together your onion, bell pepper, salt & Pepper,chili powder(opt.), italian seasoning (opt.),and your small tomato paste and mix gently into drained rice,add 1/4c.rice water blend well
Place rice mixture in dish and spread chedder over surface evenly, cover with a piece of foil and bake for 30 minutes. Remove from oven but be careful when you remove foil so steam dosent burn you, enjoy! May want to salt & Pepper as needed.