Add rice plus 1-3/4 water, a drizzle of extra virgin olive oil, and dash of salt to a small saucepan. Turn heat to high then once water starts to simmer place a lid on top, turn heat down to low, then simmer for 10 minutes or until rice is tender. Remove pot from heat then fluff with a fork. Measure out 1-1/2 cups rice (save extra rice for another use) then set aside.
Meanwhile, preheat broiler. Add ground beef and sweet Italian sausage to a large, oven-proof skillet over medium-high heat. Season with homemade seasoned salt and pepper then saute until cooked through. Drain meat if necessary then return to the skillet. Turn heat down to medium then add 1-1/2 cups cooked rice, marinara sauce, Italian seasoning blend, and frozen peas, and then stir until ingredients are combined and heated through. Spread into an even layer then sprinkle mozzarella cheese on top and broil until melted. Scoop into bowls then serve.