Mine from last night. Unfortunately I can't give you the perfect measurements and mine varies wildly depending on what I happen to find in the pantry.
1 pound of ground meat (used venison this time)
1/2 (ish) sleeve of crackers crushed. You can use bread crumbs, saltines, ritz, garlic butter ritz, club, whatever you find.
Healthy glug or two of worstershire
I skipped the raw onion this time and used some crispy fried onions. That works extremely well.
No bell peppers in the fridge, so I used 4 of the small sweet peppers. I've used hatch in the past and it worked really well.
Very generous squirt of ketchup in the meat.
I stuffed this one with manchego cheese. It got gooey and made beautiful strings but didn't run out all over the place.
Out of bacon this time or I would have covered it in chopped bacon. But still did my signature 1/2 barbecue sauce 1/2 ketchup glaze.