In a 1-quart pot with a lid, bring 2 cups water and the salt to a boil. Add the rice and stir well. Reduce the heat to low, cover, and simmer for 45 minutes to 1 hour. Drain excess liquid from the rice.
Meanwhile, combine all the dressing ingredients in a jar with a tight-fitting lid and shake well. Refrigerate until ready to use.
In a large bowl, combine the rice, artichoke hearts, peas, green pepper, green onions, tomatoes, reserved marinade, and half of the dressing. Toss well. Cover and chill or eat at room temperature. Just before serving, toss again and taste. Add some of the remaining dressing, if desired. Sprinkle with the almonds and serve.