Mix the flour and salt. Dissolve the yeast in 325 ml of lukewarm water. Add 2 tablespoons of olive oil to the flour and knead until the dough comes off the bowl. Cover and let rise in a warm place for about 30 minutes.
Dice the pumpkin. Peel the garlic and cut into slices. Rinse the thyme, shake dry, pull off the leaves. Heat 2 tablespoons of oil in a coated pan. Fry the pumpkin and garlic in it for about 8 minutes. Add thyme and bacon, fry briefly. Take the pan off the stove. Cut the cheese into slices.
Roll out the yeast dough into a square (35 x 35 cm). Spread the pumpkin mixture and cheese on top and brush the edges with egg white. Roll up, place on a baking sheet lined with baking paper and let rise for another 20 minutes. Preheat the oven to 200 degrees (convection: 180 degrees). Bake the pumpkin bread for about 40 minutes.