Step 1

Preheat the oven to 350 degrees F (175 degrees C). Spray 36 mini muffin cups with cooking spray.

Step 2

Whisk eggs and cream together in a bowl. Mix in dill, mustard powder, salt, and pepper. Gently mix in Swiss cheese, ham, onion, and diced peppers. Scoop 1 tablespoon batter into each prepared muffin cup.

Step 3

Bake in the preheated oven until set in the middle and lightly browned, about 20 minutes. Cool for 5 minutes before serving.