Preheat the oven to 350°F. Grease a loaf pan and set it aside.
In a medium bowl, whisk 2 eggs until blended.
Add ¼ cup melted butter, 1 ½ cups milk, and 1 teaspoon salt to the eggs and stir until combined.
Open the 1 can (15 ounces) red salmon and drain any excess liquid. Flake the salmon into bite-sized pieces with a fork.
Add 3 slices of soft bread, cubed, and the flaked salmon to the egg mixture. Gently fold or toss until the bread and salmon are evenly coated.
Scrape the mixture into the prepared loaf pan and smooth the top lightly.
Bake for 45–60 minutes, until the loaf is puffed, lightly browned, and a knife inserted near the center comes out mostly clean.
Let the loaf rest in the pan for about 10 minutes before slicing and serving.