Grease a 7-inch, pressure cooker safe pan or dish generously with butter or cooking spray. Line the bottom with parchment paper, then set aside.
In a large bowl, whisk together the eggs, milk, salt, and pepper. Add the ham, bell peppers, ½ cup of cheese, onion, and mushrooms. Stir to combine. Pour the mixture into the prepared pan and cover with aluminum foil.
8 large eggs, ½ cup milk, Salt and pepper, 1 cup ham, 1 cup bell pepper, ½ cup white onion, ½ cup mushrooms
Pour 1 cup of water into the stainless steel insert of the Instant Pot. Place the pan with the frittata mixture onto a trivet with handles and lower into the stainless steel insert.
1 cup water
Close the lid, set the valve to “sealing,” and press the manual (pressure cook) button. Adjust the time to 20 minutes. After the 20 minutes is up, allow a 10 minute natural pressure release before opening the valve to release any remaining pressure.
Open the lid and carefully remove the trivet and pan. Take the foil off the pan, and run a sharp knife around the inside edge to loosen the frittata. Place a plate or serving platter over the pan and gently flip the pan and plate upside down. The frittata should release from the pan.
Remove the parchment paper and sprinkle the remaining ½ cup shredded cheese on the top. Allow the cheese to melt with the residual heat of the frittata or microwave for a few seconds until the cheese is melted completely. (Alternatively, leave the frittata in the pan, and sprinkle the cheese over the top. Return the frittata to the Instant Pot, close the lid, and use the “keep warm” function to melt the cheese.)
Serve hot and store leftovers in the refrigerator for up to 3 days.
Notes
The calories listed are an approximation based on the ingredients and a serving size of 1-piece of the ham and cheese frittata when it has been cut into 6 equal sized pieces. Actual calories will vary.
Nutrition Facts
Instant Pot Frittata
Serving Size
1 piece
Amount per Serving
Calories
243
% Daily Value*
Fat
17
g
26
%
Saturated Fat
7
g
35
%
Trans Fat
0.02
g
Polyunsaturated Fat
2
g
Monounsaturated Fat
6
g
Cholesterol
254
mg
85
%
Sodium
495
mg
21
%
Potassium
290
mg
8
%
Carbohydrates
5
g
2
%
Fiber
1
g
4
%
Sugar
3
g
3
%
Protein
18
g
36
%
Vitamin A
1316
IU
26
%
Vitamin C
33
mg
40
%
Calcium
199
mg
20
%
Iron
1
mg
6
%
* Percent Daily Values are based on a 2000 calorie diet.