If using freshly cooked rice, cook the rice, then spread it out on a sheet pan and allow to cool for 5 minutes. Otherwise, immediately refrigerate cooked rice and store it covered in the refrigerator overnight.
I prefer to precook the carrots so they're fully tender in finished dish. Microwave carrots in a small bowl with a bit of water for a minute or so till just tender, then set aside. (Alternatively, steam-saute the carrots in 1/4 to 1/2 cup water with 1 teaspoon oil over medium-high heat in a large non-stick pan until no water remains, before adding the onions.)
Briefly heat 1 teaspoon oil over medium-high heat in a large non-stick pan (skip this if you've already added the oil to steam-saute the carrots.) Add the onion & carrot and sauté for 2 to 3 minutes until onion is soft and translucent. Add the garlic, peas, and Canadian bacon. Cook for about 3 minutes, stirring frequently, until peas are heated thoroughly and Canadian bacon is starting to brown. Transfer the vegetables and Canadian bacon mixture to plate.
Add 1 Tablespoon oil to the pan. Add half the cooked rice, stirring well and breaking up any clumps with a wooden spoon. Cook for 2 to 4 minutes stirring occasionally, until rice is thoroughly hot and starting to lightly brown in spots. (Chilled, day-old rice requires a bit more cooking time than freshly cooked rice.) Transfer this first batch of fried rice to the plate with vegetables and Canadian bacon.
Add another 1 Tablespoon oil in the pan. Add the remaining rice and stir thoroughly, again breaking up any clumps. Cook for about 2 to 4 minutes, stirring occasionally, until rice is thoroughly hot and starting to lightly brown. (Chilled, day-old rice requires a bit more cooking time than freshly cooked rice.) Push the rice to one side of the pan.
Add the beaten egg to the cleared side of the pan. Cook the egg, stirring frequently, until just set. Start to break up the egg into small pieces and quickly stir egg into the rice.
Transfer the vegetables, Canadian bacon, and first batch of fried rice back to the pan. Stir well to combine. Add sesame oil and soy sauce. Stir well. Continue stirring for about 2 minutes or until ingredients are well mixed and hot throughout. Taste and salt as needed.