Melt 1 tablespoon butter in a medium saucepan over medium heat. Add the onion and cook, stirring occasionally, until just softened, 3 minutes. Add the rice; cook, stirring, until slightly toasted, 2 minutes. Add 2 cups water, the apricots, cumin, cinnamon and 1/4 teaspoon salt. Increase the heat to medium high; bring to a simmer. Reduce the heat to low; stir, then cover and simmer until the rice is tender, about 15 minutes. Remove from the heat. Add the spinach (do not stir). Let sit, covered, until wilted, about 7 minutes.
Meanwhile, season the chicken with 1/2 teaspoon salt and 1/4 teaspoon pepper. Melt the remaining 1 tablespoon butter in a large nonstick skillet over medium-high heat. Add the chicken and cookuntil golden, about 3 minutes per side. Drizzle with the lemon juice.
Fold the spinach into the rice and serve with the chicken. Divide the rice and chicken among plates. Thin the yogurt with 1 teaspoon water; drizzle over the chicken. Sprinkle with the almonds.