Dissolve yeast in water in a large bowl; stand 5 minutes until foamy.
Stir in honey, salt, and 1/4 cup seeds.
Gradually stir in flour until shaggy dough forms; knead on floured surface 8-10 minutes until smooth and elastic.
Place in greased bowl; cover with damp towel and rise in warm place 1-2 hours until doubled.
Punch down; shape round loaf on parchment-lined baking sheet.
Cover; rise another 45 minutes until puffy.
Preheat oven to 425°F; brush top with egg white and sprinkle generously with remaining seeds.
Slash top with sharp knife; bake 35-40 minutes until golden brown and hollow-sounding when bottom tapped.