In a large bowl, combine the bread cubes, 1-1.5 tbsp hops-suneli seasoning, and salt to taste. Stir thoroughly until all pieces are evenly coated.
Add 3-4 tbsp olive oil and mix until the bread cubes are well coated.
Spread the bread cubes in a single layer on a baking sheet. Bake at 190 °C (375 °F) for 30-40 minutes, stirring every 15 minutes, until golden and crispy.