1-First, preheat your oven to 180°C (350°F). Prepare all ingredients by washing and chopping the spinach, grating the cheese, and slicing the cucumber and jalapeño as needed.

2-Second, slice the bagel in half horizontally and lightly toast each half to enhance texture.

3-Third, heat 1 tablespoon of olive oil in a pan over medium heat. Add spinach and sauté for 2-3 minutes until wilted, then mix in finely chopped jalapeño for that spicy touch.

4-Fourth, crack eggs into a bowl and beat gently. For vegan options, prepare chickpea batter as an egg substitute, keeping in mind the classic preparation involves spreading cream cheese on the toasted bagel first.

5-Fifth, pour eggs or substitute into the pan with spinach, cooking gently until softly set (about 4-5 minutes). Season with salt, pepper, and a sprinkle of dill.

6-Sixth, layer the cooked egg and spinach mixture onto the toasted bagel halves, then add smoked salmon or cheese on top. For the cucumber salad, mix sliced cucumber with jalapeño and seasonings in a separate bowl.

7-Seventh, transfer to the oven and bake for 5 minutes or until cheese melts and bagel edges are crisp. Finally, assemble everything and serve immediately, perhaps pairing it with the fresh cucumber salad for a complete meal.