How to Make It
Preheat oven to 375°.
To prepare filling, combine first 11 ingredients in a large bowl.
Heat a large nonstick skillet over medium-high heat. Coat pan with cooking spray. Add beef mixture to pan; cook 8 minutes or until done, stirring occasionally. Stir in cabbage; cook 4 minutes or until cabbage is tender. Remove from heat; cool completely.
To prepare dough, lightly spoon flour into dry measuring cups; level with a knife. Combine flour, baking powder, and salt in a large bowl, stirring with a whisk. Combine 1 1/3 cups water, honey, and canola oil, stirring with a whisk. Add water mixture to flour mixture; stir until a soft dough forms. Turn dough out onto a lightly floured surface. Knead until smooth and elastic (about 5 minutes); cover and let stand 5 minutes.
Roll dough into a 16 x 12–inch rectangle (about 1/4-inch-thick) on a lightly floured surface. Cut dough into 12 (4-inch) squares. Working with 1 square at a time (cover remaining dough with a towel to prevent drying), spoon about 1/4 cup beef mixture into center of each square. Moisten edges of dough with water; bring 2 opposite corners to center, pinching points to seal. Pinch 4 edges together to seal. Place rolls, seam side down, on a baking sheet lined with parchment paper. Combine 1 tablespoon water and egg white in a small bowl, stirring with a whisk. Lightly brush tops of dough with egg white mixture; sprinkle each with 1/4 teaspoon sesame seeds. Bake at 375° for 25 minutes or until rolls are lightly browned. Remove from baking sheet; cool on wire racks.