Heat the oil in a large skillet over medium-high heat. Add the garlic and onions and sauté just until they are soft and fragrant, about 2 minutes.
Add the ground pork, season with salt and pepper, and cook just until browned on all sides, about 5 minutes.
Add the carrots, potato, and bell pepper. Stir and sauté for 1 minute.
Pour in the fish sauce, tomato sauce, and water. Stir the ingredients, then cover the skillet and lower the heat to medium. Cook, covered, for about 7 to 10 minutes, just until the sauce has thickened a little and the vegetables are soft.
Remove the lid, add the peas, and stir and cook for another 5 minutes. Serve with rice.
Video
Notes
Store in an airtight container in the refrigerator for up to 4 days. Fish sauce: if you don't have or don't want to use fish sauce, you can use an equal amount of soy sauce, tamari sauce, oyster sauce, or coconut aminos instead.