Preheat your oven to 350F. Grease or spray a large pie dish and set aside.
In a large bowl, whisk the eggs until slightly frothy. Whisk in the milk, cheese, and salt and pepper to taste until well combined.
Chop the pepper and onion. Heat the olive oil in a small skillet over medium heat until the oil shimmers. Sauté the onion and pepper until the onion is translucent, about 3 minutes.
Whisk the pepper, onion, chopped broccoli, and crumbled bacon into the egg and cheese mixture.
Pour the mixture into the pie dish.
Bake uncovered at 350F for 35-45 minutes, depending on the depth of your pie dish. The edges should be golden brown and the center of the quiche should be set, not jiggly.
Serve and enjoy - preferably with a few slices of avocado!