Short-grain brown rice gets a whole pound of fresh mushrooms and a shower of chopped green beans in this vegetarian risotto. If the rice isn't tender enough after you've stirred in all the porcini liquid, add water and continue cooking and stirring until it's done.
Bring a medium saucepan of water to a boil, and add 1 teaspoon salt. Stir in rice; reduce heat, and simmer for 15 minutes (rice will not be done). Drain. Set aside.
Place porcini in a medium bowl; add 3 cups hot water. Let stand 15 minutes. Drain through a sieve over a bowl; reserve liquid. Chop porcini.
Heat 1 tablespoon oil in a large skillet over medium-high heat. Add sliced fresh mushrooms; sauté for 8 minutes or until moisture evaporates and mushrooms begin to brown, stirring occasionally. Stir in reserved porcini, green beans, 1/4 teaspoon salt, and 1/4 teaspoon black pepper; cook for 2 minutes or until the green beans are crisp-tender. Place mushroom mixture in a large bowl; keep warm.
Return pan to medium-high heat; add remaining 1 tablespoon oil. Add shallots, and sauté 4 minutes or until tender. Add rice; cook for 2 minutes, stirring occasionally. Stir in remaining 1/4 teaspoon salt and 1/4 teaspoon black pepper. Stir in wine; cook 2 minutes or until the wine evaporates, stirring constantly. Add 1/2 cup reserved mushroom liquid to rice mixture; cook 3 minutes or until the liquid is nearly absorbed, stirring constantly. Stir in remaining mushroom liquid, 1/2 cup at a time, stirring constantly until each portion is absorbed before adding the next (about 30 minutes total). Stir in mushroom mixture, Parmigiano-Reggiano, and parsley; sprinkle with thyme. Serve immediately.