Thoroughly blot the mushrooms with a paper towel and cut into thin slices.
Add lemon juice and soy sauce to the chopped mushrooms. I used the sauce. Leave to marinate for 20-25 minutes.
Cook the eggs until tender.
Wash the spinach and dry it with a paper towel. Tear the large leaves with your hands. Put the spinach in a cup.
Peel the red onion and cut it into thin half rings.
Cut the bacon slices into strips and heat over medium heat for 10 minutes. Place the bacon on a paper towel to remove excess fat.
Cut bread (any white bread) into cubes and fry quickly until golden brown in the same pan where the bacon was cooked.
Peel the onion and garlic clove and finely chop.
Fry in a spoonful of olive oil for a couple of minutes, add brown sugar. Stir well until the sugar dissolves.
Prepare the dressing. Add vinegar, olive oil and soy sauce to the onion and garlic with sugar. I used the sauce. Season with salt and pepper. Warm up for a couple of minutes and pour the finished dressing into a cup. Whisk lightly.
Peel the boiled eggs and cut them into quarters.
Add the red onion and mushrooms to the spinach bowl (drain the marinade), pour in the warm dressing and mix. Top with eggs, fried slices of bread and sprinkle with bacon. Serve the salad warm.