HEAT oven to 375°F. PRESS noodles evenly against bottom and sides of greased 9-inch pie plate.
HEAT water in large nonstick skillet over medium-high heat until hot. ADD bell pepper and onion; COOK and STIR until water has evaporated and vegetables are crisp-tender, three to four minutes. ADD ham; MIX well. SPREAD evenly in noodle crust.
BEAT eggs, milk and mustard in medium bowl until blended. POUR over ham mixture.
BAKE in center of 375°F oven until center is almost set but jiggles slightly when it is gently shaken and knife inserted near center comes out clean, 30 to 40 minutes. LET STAND 5 minutes. CUT into wedges.
How to tell if it’s done: Baked custards should be removed from the oven before the center is completely set. The center will jiggle slightly when dish is gently shaken. Custard will continue to “cook” after it’s removed and center will firm up quickly. Overbaked custard may curdle. The knife test: Insert knife about 1 inch from the center. If knife is clean when pulled out, the custard is done. If any custard clings to the blade, bake a few minutes longer and test again.
This recipe is an excellent source of protein and choline, and a good source of folate and vitamin A.