- Prep the ingredients per the instructions above. 
- Preheat oven to 350°F (180°C). Lightly spray a muffin tin with nonstick spray. (1 for each different kind of frittata). 
- Crack one egg into each muffin well, portion the minced onion into each well, and season wiith salt and pepper. Whisk each well until the egg is beaten.  
- Place the bacon in a saute pan over medium heat. Saute until golden brown and somewhat crispy. Remove to paper towels to drain any excess grease. 
- Portion the three different toppings into the individual muffin wells and mix. 
- Bake for 15-20 minutes, until set. (Test by poking a toothpick into the center, should come out clean).  
- While the frittatas are baking, make the juice. Cut the oranges in half. Using a manual juicer or electric juicer, juice the oranges into a pitcher or glass. Refrigerate until ready to serve. (About 5 to 6 oranges yield an 8oz glass of OJ.) 
- Once the frittatas are set, let them cool slightly. Toast the bread then spread it with butter. 
- Serve the frittatas with toast and juice.