I planted about 16 tomato plants for sauce and got about 28 quarts of tomato sauce. I also went apple picking and canned up about as many quarts of applesauce.
You don’t need a huge garden, though. Mine is about 7 x 30 and I grew peas, beans, lettuce, onions, tomatoes, potatoes and turnips.
I wouldn’t bother with the onions or potatoes again, though. They’re too cheap in the stores.
Strawberries are very easy. They grow like weeds.
I wish I had your optimism. I had absolutely NO luck with strawberries. Nor with raspberries.