1. Steam haricots verts 5 minutes or until crisp-tender; remove from heat.
2. Melt 2 tablespoons butter in a large skillet over medium-high heat. Add shallots to pan; sauté 3 minutes, stirring occasionally. Add mushrooms; sauté 5 minutes or until liquid evaporates. Stir in sherry; bring to a boil. Cook until liquid almost evaporates (about 2 minutes). Add remaining 1 tablespoon butter and haricots verts; cook 30 seconds or until thoroughly heated, tossing to coat. Remove from heat. Add parsley, thyme, salt, and pepper; toss to combine.