Heat canola oil in a large nonstick skillet over medium-high heat. Add shallots and chile to pan; sauté 2 minutes or until the shallots are lightly browned. Add chile paste, fish sauce, soy sauce, salt, and garlic to the pan; cook for 1 minute or until the sauce becomes fragrant. Add diced chicken, shrimp, and rice to the pan, stirring to coat with sauce. Cook for 2 minutes or until thoroughly heated, stirring occasionally. Place about 1 1/2 cups rice on each of 4 plates, and sprinkle each serving with 2 tablespoons cucumber and 2 tablespoons tomato.