@jakeduck1
You can brown ground beef in the oven for the peppers and lasagna...maybe 15 minutes. You don’t need meat in your lasagna. You don’t need to have meat all the time.
You can grill a hamburger patty or broil it in the oven. I’ve heard that you can brown ground meat by boiling it in water but I have never done or tasted that or think that I would try it. I like veggie burgers but only pan fried.
Not sure what you’re doing with the steak, potatoes and veggies. What are you making?

Regards from Mary