Preheat oven to 325 degrees.
Spray 13x9 Pyrex baking dish or a disposable 13x9 aluminum pan with non-stick cooking spray, and set aside.
Cook the 2 pounds breakfast sausage, drain. When cook enough to handle, crumble the sausage and set aside.
In a small mixing bowl, crack the four eggs, add the milk and dry mustard, and beat until blended.
Using the baking dish (or aluminum pan), put the croutons as the bottom layer, followed by the cheese, cooked sausage
Sprinkle the DGF Candied Jalapeno Relish over the sausage layer. Add more/less to your personal preference.
Pour the egg and milk mixture over the top of the ingredients. Cover and refrigerate overnight to allow the mixture to marinate and soak into the croutons.
Bake for 1 hour, 30 minutes, or until eggs are set well and browning on top. Best served hot. Can refrigerate for several days. You can also freeze the leftovers.